Parameters and Setpoints ASIC/1-8655

Active Control Mode

Shows present mode of the controller.

Active Cooling Temperature Setpoint

The current cooling temperature setpoint saved in RAM

Active Demand Group

Present Demand Group as received on the communication line.

Active Demand Level

Present Demand Level as received on the communication line.

Active Heating Temperature Setpoint

The current heating temperature setpoint saved in RAM.

Afterhours Date Stamp

Holds a month, date and hour which the user should set to the current date and hour when he resets Afterhours Total Time to zero. [XX/XX XX am/PM]. User changeable.

Afterhours Enable

If set to [Yes] the push-button on input 2 on the wall sensor activates the Afterhours Override mode upon being depressed. When this is enabled the push-button will give override to occupied mode, or toggle the lights if already in occupied [Yes, No Default No]. User-changeable.

Afterhours Request

Tells whether the controller is currently operating in Afterhours Override mode. [Yes or No]. Not user-changeable.

Afterhours Reset

Action to clear Afterhours Total Time and update Afterhours Date.

Afterhours Status

Tells whether the Afterhours button has been pressed and Afterhours time allowed is non-zero. [Yes or No].

Afterhours Time Allowed

This is an non-volatile memory variable that represents the number of minutes the After Hours Override will be in effect when the push button is pressed. The time period that Afterhours Override will be in effect following a triggering by the wall sensor pushbutton. This is used only during Night Setback or in an Unoccupied State. Default 60 minutes Range 0-255 minutes Resolution 1 minute [0 to 255 minutes].

Afterhours Time Remaining

The number of minutes remaining before Afterhours Override mode will cease to operate and the control will revert to its original state. [0 to 255 mins]. Not user-changeable.

Afterhours Total Time

The accumulated time the controller has spent in Afterhours Override mode. The user must set this counter to 0 and appropriately change the Afterhours Date Stamp if he or she wished to begin a new tracking of the time spent in Afterhours Override mode. [0 to 65535 mins, Default 0 mins].

Alarm 1, Zone Temperature Alarm

This alarm is set in all control states, bit 0 = 1 zone temperature too hot; bit 1 = 1 zone temperature too cold, in A1_Alarm1ZoneTemp

Alarm 2, Discharge Air Temperature Alarm

If the discharge air temperature raises above the DAT High Limit Setpoint, a high DAT high limit alarm is set. If the setpoint is 0, this alarm is ignored. If the discharge air temperature falls below the DAT Low Limit Setpoint .a DAT Low Limit alarm is set. Once a discharge air alarm is set, the temperature must recover by the DAT Alarm Hysteresis before the alarm is cleared. . bit 2 = 1 too hot; bit 3 = 1 too cold.

Alarm 3, Water Loop Temperature

If the water loop temperature raises above the Water Loop Max Alarm Setpoint this point a high water loop alarm is set. If the setpoint is 0, this alarm is ignored. If the water loop temperature falls below Water Loop Min Alarm Setpoint , a low water loop alarm is set. . Once a water loop alarm is set, the temperature must recover by the Water Loop Alarm Hysteresis before the alarm is cleared. bit 4 = 1 Hi ; ,bit 5 = 1,

Alarm 4 HI, Compressor Lockout

If Fault Compressor Lockout is set, the compressor will turn off on Compressor Fault. It will wait for a Compressor Retry Wait time and then try again. If another Compressor Fault Alarm occurs before the end of the minimum ON time, another attempt is made to Start the compressor, as described above, until the maximum allowed tries has been exceeded. If Fault Compressor Lockout is Enabled, when the maximum allowed tries [Default, 3] has been reached, then a Compressor Lockout Alarm is set and no further attempt is made to start the compressor. The Compressor Lockout Alarm is cleared by only a new MT=10, M1=14 message, or resetting power to the unit.

Alarm 4 LO, Compressor Fault

When the compressor 1 or 2 is ON and when Compressor Fault Enable, is yes, the status of the Compressor Fault contacts across input 6 are monitored. If a Low Input 6 Fault is detected for a Compressor Fault Delay [Default 20 s], then the Alarm 4, LO Compressor Fault is set.

Alarm 5 - Proof of Fan Alarm

Proof of Fan Alarm, Table 16, Entry 2, bit 0 (Alarm 5 HI) is set when proof of fan fails.

Analog Output Assignment

Identifies the value used to control the analog output: 0 - None Not assigned. 1 - PA_CLGRequirement ; 2 - PA_HTGRequirement ; 3 - PA_EconoCoolReq , 4- Changeover HTG/CLG.

Analog Output Calibrate

Calibration factor for 10 Vdc Analog Outputs. May be adjusted if Analog output reads high or low.

Analog Output Max Output

The voltage 0..255 = 0..10 Vdc when the control input is 100% (255).

Analog Output Min Output

The voltage 0..255 = 0..10 Vdc when the control input is 0% (0)

Analog Output Value

The actual output value 0..255 = 0..10 Vdc.

ASIC/1 Day "Day of Week"

The day of the week as the controller knows it. The clock may be synchronized to the current day, date and time as the PC knows them by placing the cursor at the screen location for this parameter and pressing <s>. The day may be set to holiday by placing the cursor at the screen location and pressing <h>. The holiday status may only be cleared by a re-synchronization of the controller. These are the only two methods by which the clock may be changed. NOTE: If the controller clock reads "NA" for the day, this indicates that the controller has not been synchronized. [1 = Monday].

ASIC/1 Time "Time of Day"

The time of day as the controller knows it. The clock may be synchronized to the current day, date and time as the PC knows them by placing the cursor at the screen location for this parameter and pressing <s>. The day may be set to holiday by placing the cursor at the screen location and pressing <h>. The holiday status may only be cleared by a resynchronization of the controller. These are the only two methods by which the clock may be changed. [ XX:XX:XX].

Auxiliary 1,2 Output Mask

Auxiliary outputs may be assigned which are not connected to the sequence of operation. They may be controlled only by overrides from a user interface.

A1_Auxiliary1OutputMask, A1_Auxiliary2OutputMask.

Auxiliary Cooling Enable

Enables Auxiliary Cooling Feature which will bring on an additional output if the Cooling Requirement is equal to 100%(255) and the Zone Temperature is greater than the Active Cooling Setpoint by a value greater than the Auxiliary Cooling Temperature Offset for an Auxiliary Cooling Wait Time .

Auxiliary Cooling Output Mask

Assigns output mask if Auxiliary Cooling has been enabled.

Auxiliary Heating Enable

Enables Output on Auxiliary Heating Mask whenever the controller is in Heating Mode. Is off in deadband and cooling.

Auxiliary Heating Output Mask

It indicates the physical output assigned to Auxiliary Heating Output.

Auxiliary Hysteresis

The amount that the heating or cooling requirement must fall before the auxiliary heating or cooling is turned off. [Default 5/255]

Auxiliary Temp (IN-4) - word

Optional Auxiliary Temperature measured on Input #4, smoothed and converted using Input Convert Type and saved in RAM.

Auxiliary Temp (IN-8) – byte

Optional Auxiliary Temperature measured on Input #8 and rounded to single byte value and saved in RAM.

Auxiliary Temp (IN-8) - word

Optional Auxiliary Temperature measured on Input #8, smoothed and converted using Input Convert Type and saved in RAM, 0.01F)

Auxiliary Temp Offset

Number of degrees that zone temperature must exceed active setpoint before auxiliary cooling is brought on. in deg F or deg C [Default 2 F]

Auxiliary Wait Time

The length of time that Auxiliary Temp Offset exists before auxiliary cooling is brought on. [Default 120 s]

Auxiliary Wait Timer

The RAM length of time that Auxiliary Temp Offset exists before auxiliary cooling is brought on.

Baud Rate

The communication speed. 192 = 19,200 baud, 96 = 9600 baud, 12 = 1200 baud. If any other value then baud rate is 9600 baud. New baud rate takes effect immediately. [Default 9600]

Changeover Alarm

If Analog output Changeover HTG/CLG is used, a Changeover alarm is set when an analog output has been assigned to Changeover, and the Changeover Status conflicts with the Control Mode. There is no action taken by the Changeover Alarm.

Changeover Setpoint

Used by Auto Changeover to compare with Water Loop Temperature (IN-7) to decide whether the Changeover Analog Output is Heating or Cooling.

Changeover Status

If Changeover Status is Yes, then the Changeover Analog Output is Heating. If Changeover Status is No, then the Changeover Analog Output is Cooling.

Changeover Mode

Indicates if changeover is Auto or forced via communication message. ChangeoverMode, 0, AutoChangeover; 1 Changeover ON; 2, Changeover Off

CO2 Level

The CO2 level 0-2000 ppm as measured on a sensor on Input 4. A custom Span and Offset has been added for Input 4

CO2 Ventilation Enable

If CO2 Ventilation Enable is yes, then a Ventilation Minimum Position is calculated based on the CO2 level 0-2000 ppm as measured on a sensor on Input 4. compared to a CO2 Setpoint.

CO2 Ventilation Gain-Ki

A Integral calculation determines the Ventilation Minimum Position. Between Economizer Closed Position, and Economizer Maximum Position. The Ventilation Minimum Position is calculated using a direct-acting Integral algorithm which compares the CO2 Level with the CO2 Ventilation Setpoint, every 30 seconds. If the measured CO2 Level is greater than the CO2 Setpoint, then the Ventilation Minimum Position increases.

CO2 Ventilation Minimum

When the fan is on, if CO2 Ventilation Enable is yes, then the Economizer Cooling Requirement is compared with the Ventilation Minimum Position, and the larger value is used.

CO2 Ventilation Setpoint

The Ventilation Minimum Position is calculated using a direct-acting Integral algorithm which compares the CO2 Level with the CO2 Ventilation Setpoint, every 30 seconds.

Compressor 1 Min On/Off Timer

Times the minimum on and off time for Compressor 1.

Compressor Duty Cycle Time

Time base for duty cycle control of heat pump in 4 s increments [0-1024 s]. [Default: 600 s]

Compressor Duty Cycle Timer

Times the compressor duty cycle.

Compressor Fault Counter

If the Compressor Fault Alarm has been enabled, and the Compressor Fault contacts are closed for a Compressor Fault Delay [Default, 20 s], then the Compressor Fault Alarm is set and the Compressor Fault Counter is incremented. The Compressor Fault Counter is cleared at the beginning of each day. Multiple tries are allowed before the compressor is locked out. If the compressor is locked out, then a Compressor Lockout Alarm is set which must be cleared using communications. If the Compressor Fault Alarm has been enabled, and the Compressor Fault contacts are closed for a Compressor Fault Delay [Default, 20 s], then the Compressor Fault Alarm is set and the Compressor Fault Counter is incremented. The Compressor Fault Counter is cleared at the beginning of each day.

Compressor Fault Delay

If the Compressor Fault contacts are closed for a Compressor Fault Delay [Default, 20 s], then the Compressor Fault Alarm is set. The Compressor Fault Alarm is cleared when the Compressor Fault contacts are open for a Compressor Fault Delay.

Compressor Fault Enable

[Yes, No] If the Compressor Fault Alarm has been enabled, and the Compressor Fault ontacts on input #6 are closed for a Compressor Fault Delay [Default 20 s], then the Compressor Fault Alarm is set and the Compressor Fault Counter is incremented. The Compressor Fault Alarm takes precedence over the Discharge Air Temperature HI/LO Alarm. The Compressor Fault Counter is cleared at the beginning of each day.

Compressor Fault Lockout

If Compressor Fault Lockout is set, and the Compressor Fault Alarm is set, the controller turns OFF compressor. It then retries until Compressor Try Max has been reached. .

Compressor Fault Timer

Compressor Minimum Off Time

Compressor Minimum Off Time. Minimum compressor off time in 4 s increments [0-1024 s].

Compressor Minimum On Time

Compressor Minimum On Time. Minimum compressor on time in 4 s increments [0-1024 s].

Compressor On Timer

Calculates the amount of time compressor stage 1or 2 should be on during the current compressor duty cycle.

Compressor On/Off Mask

The output mask for Comp 1 On/Off output. Always BO-2 . PA_Comp1On-OffMask (T3,31) The output mask assignment for Comp 2 On/Off output. Always BO-2.

Compressor Retry Timer

The controller waits an adjustable Compressor Retry Wait [Default, 120 s] before attempting to restart the compressor. No further action on the compressor output is taken until the Compressor Retry Wait times out. When the Retry Wait times out, if the compressor output is still requested, and if the Compressor Fault Alarm has cleared, then the Compressor Try Counter is incremented. If the Try Counter is less than or equal to the maximum allowed tries, the compressor is restarted.

Compressor Retry Wait

The controller waits an adjustable Compressor Retry Wait [Default, 120 s] before attempting to restart the compressor.

Compressor Run Time Today

Time for Compressor 1 Today in 1/2 minute increments.

Compressor Run Time Total

Accumulated Compressor 1 Run Time in hours. Accumulates from Compressor Run Time Today at midnight.

Compressor Starts Last Hour

Compressor 1 Starts in previous hour . updates from Compressor Starts This Hour at beginning of hour.

Compressor Starts This Hour

Compressor 1 Starts in current hour.

Compressor Starts Today

Compressor 1 Starts Today.

Compressor Starts Total

Accumulated Compressor 1 Starts. Accumulates from Compressor Starts Today at midnight.

Compressor Try Counter

If Compressor Lockout is enabled, and the Compressor Fault Alarm is set, the controller turns OFF compressor. When the Retry Wait times out, if the compressor output is still requested, and if the Compressor Fault Alarm has cleared, then the Compressor Try Counter is incremented. If the Try Counter is less than or equal to the maximum allowed tries, the compressor is restarted.

Compressor Try Max

When the Retry Wait times out, if the compressor output is still requested, and if the Compressor Fault Alarm has cleared, then the Compressor Try Counter is incremented. If the Try Counter is less than or equal to the maximum allowed tries, the compressor is restarted.

Control Mode

The operating modes for the controller are Cooling, Deadband, and Heating. The control enters deadband when the temperature falls one degree F below the Active Cooling Setpoint, or above the Active Heating Setpoint. The control enters cooling when the temperature reaches the Active Cooling Setpoint. The control enters heating when the temperature reaches the Active Heating Setpoint. Shows present mode of the controller.

Control State

Shows present state of the controller. A1_ControlState[UNO,OCC,NSB,MRDY]

Controller Interlock

Shorting input #3 gives Interlock for address (input = 0 V). The interlock is required for all messages with a B4B4h , or B455h destination address.

CLG Temperature Upper Limit

Upper Limit of user adjust in the Digital Display Wall Sensor in the Heating Control Mode.

Cooling Night Setback Temperature SP

This is the desired zone temperature during Night Setback with the controller in cooling mode.

Cooling Occupied Temperature SP

This is the desired zone temperature during an Occupied state in cooling mode.

Cooling Requirement

Cooling calculated value (%) as result of PI algorithm, saved in RAM and used to determine the on time for cooling stages.

Cooling Unoccupied Temperature SP

This is the desired zone temperature during an Unoccupied state with the controller in cooling mode.

Custom Span and Offset

It is possible to configure custom inputs on Inputs 5,6,7, & 8. The Custom Span is the signed difference between the input value at 5 Vdc minus the input value at 0 Vdc. The Custom Offset is the input value at 0 Vdc. [Default, Custom Span = 4095, Custom Offset =, 0]

DAT Compressor Disable

the DAT Compressor Disable is Set, then the Low Discharge Air Temperature Alarm disables the compressor. A High Discharge Alarm does not disable the compressor.

Default Analog Output State

The state assumed by the analog outputs after power reset in personality 0, and the state assumed by the analog outputs during flash downloads.

Default AO State

Default state assumed by Analog Outputs on reset of power in Personality zero, or during Flash programming of the controller. [Default 0]

Default Output State

The state assumed by the binary outputs after power reset in personality 0, and the state assumed by the binary outputs during flash downloads. Bit 0 = OUT 1, … , Bit 7 = OUT 8 [Default 0]

Default Output State

Default state assumed by Binary Ouputs on reset of power in Personality zero, or during Flash programming of the controller. [Default 0]

Demand Group

The Demand Group used by rotating demand shedding.

Demand Reset Range

The maximum Demand Level [Default 6].

Demand Rotate Level

The Active Demand Level at which rotating demand shedding occurs.

Demand Shed Level

The Active Demand Level at which demand shedding occurs.

Description

A 32 character description may be stored non-volatile memory to help identify that controller.

Device Address

The communications address of the accessed controller. Changing the device address of a controller requires that it be hardware interlocked (see text on the Address Screen to learn how to interlock a controller); address changing should only be done while in Local communications mode, as otherwise multiple controllers addresses may be altered. In Hibyte, Low Byte Order!

Digital Display Enable

Enables the Digital Display Wall Sensor. In deg F/C or in 0.5 deg F/C .

Discharge Air Temp

Optional Discharge Air Temperature measured on Input #6 and rounded to single byte value and saved in RAM.

Discharge Air Temp Alarm Hysteresis

Once a discharge air alarm is set, the temperature must recover by this much before the alarm is cleared. (2-25 F) [Default, 5]

Discharge Air Temp High Limit Alarm Setpoint

The maximum discharge air temperature setpoint. (35-160 F) If the discharge air temperature raises above this point a high discharge air alarm is set.[Default, 140]

Discharge Air Temp Low Limit Alarm Setpoint

The minimum discharge air temperature setpoint. (35-160 F). [Default, 40 F] If the discharge air temperature falls below this point a low discharge air alarm is set.

Discharge Air Temperature SP

Temperature SP for control of Discharge Air Economizer Damper.

Discharge Air Temperature-previous

Previous Discharge Air Temperature measured on Input 8 used for calculating Economizer Cooling Requirement.

Discharge Air Temp-word

Optional Discharge Air Temperature measured on Input #6, smoothed and saved in RAM. 0.01 deg

Economizer Auto Initialize

If Economizer Auto Initialize is Yes, then the Tri-State Economizer output is driven fully closed for an Economizer Base time, every 100 minutes. . [Default No]

Economizer Base Time

The time required to drive the economizer fully open. [Default 120s]

Economizer Close Position SP

The percentage of the Economizer Base Time for the Closed Position. [Default 0] When the economizer is closed it is driven closed for an additional Economizer Base Time.

Economizer Cooling Required

Goes from Economizer Min Position to Max Position SP as the Primary Calculation goes from 0 to 25%

Economizer Damper Close Mask

If Economizer Modulate Enable is set then the output assigned by this mask is used for the tri-state economizer Close Output. [Default Out 7]

Economizer Damper Open Mask

If Economizer Enable is set then the output assigned by this mask is used for On/Off economizer. If Economizer Modulate Enable is set then the output assigned by this mask is used for the tri-state Economizer Open Output. Economizer Modulate Enable takes priority over Economizer Enable. [Default Out 6]

Economizer Freeze Limit Temperature

If the outdoor temperature is less than the Economizer Freeze Limit Setpoint, then the economizer is driven closed. [Default 35]

Economizer Ki

Integral constant used for control of Mixed Air Damper.

Economizer -Kp

Proportional constant used for control of Mixed Air Damper.

Economizer Low Limit Temperature SP

If the outdoor temperature is less than the Economizer Setpoint and greater then the Economizer Low Limit SP, then the economizer is permitted. [Default 45]

Economizer Maximum Position SP

The percentage of the Economizer Base Time for the Maximum Position. [Default 100 %]

Economizer Minimum Position SP

The percentage of the Economizer Base Time for the Minimum Position. [Default 50]

Economizer Offset Temperature

Used by Discharge Air Economizer to determine if Economizer is unable to satisfy the cooling load. If the Cooling Requirement is 100% and the difference between the Zone Temperature and the Active CLG Setpoint is greater than the Economizer Offset Temperature for a Economizer Offset Time, then the Economizer can not satisfy cooling. [Default 2 deg]

Economizer Offset Time

Used by Discharge Air Economizer to determine if Economizer is unable to satisfy the cooling load.. If the Cooling Requirement is 100% and the difference between the Zone Temperature and the Active CLG Setpoint is greater than the Economizer Offset Temperature for a Economizer Offset Time, then the Economizer can not satisfy cooling. [Default 120 seconds]

Economizer Offset Timer

Used by Discharge Air Economizer to time the Economizer Offset Time.

Economizer Position

The actual drive time position of the Tri-state economize in seconds.

Economizer Position SP

The calculated economizer position as fraction of the Economizer Base Time.

Economizer Temperature SP

If the outdoor temperature is less than the Economizer Setpoint and greater than the Economizer Low Limit SP, then the economizer is permitted.

Economizer Timer

Used to determine if Discharge Air Economizer has not been able to satisfy the cooling requirement

Economizer Type

If Economizer Enable is yes then the Economizer Type determines the control sequence. 0 = None, 1= On-Off Economizer, 2 = Modulating Economizer, 3 = Mixed Air Economizer, 4 = Discharge Air Economizer(655A1.2).

Emergency Override

Emergency 1 and Emergency 2 state forces non-volatile memory to turn OFF the fan and electric heat off, and drive economizer closed.

Emergency Status

RAM Emergency Status 0 = indicates that no emergency is present; 1 = emergency 1 state is set; 2 = emergency 2 state is set.

Factory Analog Input Tolerance

Tolerance used to test Analog Inputs during Factory Test. Not a User Parameter.

Factory Analog Output Tolerance

Tolerance used to test Analog Outputs during Factory Test. Not a User Parameter.

Factory Default Table

Type "Table 1" <Enter> This causes a "Brain Dump" of the standard Factory Default Table 1. This command requires a Controller Interlock.

Fan On/Off Mask

The output mask assignment for fan output. Always BO-1.

Fan Proof Delay

Proof of Fan Delay, Table 3, Entry 18 [10s], Wait on start, and debounce 10 s

Fan Proof Enable

A Proof of Fan Switch across Input 7 (Water loop) Opens on proof of fan. If Proof of Fan Enable is Yes, the switch is examined whenever the fan, or high fan is on, or in Heating with Gas Heat Enable = Yes. The Proof of Fan Switch is for information only. No actions result from proof of fan alarm.

Fan Proof Status

Proof of Fan Status set when proof of fan established.

Fan Run Time Today

Time for Fan Run Today in 15 minute increments.

Fan Run Time Total

Accumulated Fan Run Time in hours. Accumulates from Fan Run Today at midnight.

Fan Start Delay

Adds Fan Start Delay (0..255s) on Reset of Power and change of Control State. Fan does not start until Fan Start Timer counts to zero. For Constant Fan this delays the initial start after reset or schedule change. The Intermittent Fan does not start until controller leaves deadband which is typically more than 30 seconds after reset or schedule change and Fan Start Delay should be greater than 30 seconds. See also Fan Start Timer

Fan Start Timer

On Reset of Power and change of Control State Fan does not start until Fan Start Timer counts to zero. For Constant Fan this delays the initial start after reset or schedule change. The Intermittent Fan does not start until controller leaves deadband which is typically more than 30 seconds after reset or schedule change and Fan Start Delay should be greater than 30 seconds. See also Fan Start Delay.

Fan Wait Time

Delay time for fan to turn off after entering Deadband. [Default, 30] Time for fan to run at end of compressor cycle with intermittent fan operation. [0-255 s]. [Default, 30 s]

Flash Enable

Enables update of firmware (executable application program) over RS-485 communication. [Default: No]

Gas Heat Enable

A new option that overrides fan operation for gas heat for AC personalities1,2,3,4 only. In Heating Mode the fan does not come on . When Gas heat is used the Fan is controlled by the Heat stage.

Group Address

This specifies the Group Address (Group Address 0) to which the controller will respond. Default 512D (200H) Range 0x0100-0xFF00 (multiples of 0x100) Resolution 256

Half Degree Enable

Enables temperature control in 0.5 deg F/C.

Heat 1 Mask

It indicates the physical output assigned to Heat 1 Output for AC personalities or RV output for Heat Pump Personalities. Always BO-4. Read Only.

Heat 2 Mask

It indicates the physical output assigned to Heat 2.

Heat Base Time

This represents the duty cycle to be used for electric/gas heat applications. 4 sec increments. Default:60*4 seconds Range: 0-255 seconds Resolution: 4 second

Heat Base Timer

Times the heating duty cycle for Heat 1 and Heat 2. PA_HeatBaseTimer (T10,55,Byte)

Heat Fan Delay Enable

If Heat Fan Delay Enable is yes in heating mode, Intermittent Fan does not come on until Heating Requirement > 0. Fan stays on as heat duty cycles in heating mode.

Heat Min Off Time

This represents the Minimum off time to be used for heat applications. 4 sec increments. Default:60*4 seconds

Heat Min On-Off Timer

Times the minimum on and off time for Heat 1, and times the minimum on and off time for Heat 2.

Heat Min OnTime

This represents the Minimum on time to be used for heat applications. 4 sec increments. Default:60*4 seconds.

Heat On Timer

Calculates the amount of time Heat 1 should be on during the current Heating Base Time, and calculates the amount of time Heat 2 should be on during the current Heating Base Time

Heat Pump Compressor Enable

This RAM flag is set to True at power up. When set the HP Compressors operate under normal sequence control. It can be cleared Only with MT=10, M1 = 12 Heat Pump Disable, and set only with MT=10, M1 =11 Heat Pump Enable Message. If cleared the Heat Pump compressor is locked out. Included for backward compatibility.

Heat Pump Request

This RAM flag is set to True when Water Source Heat Pumps request heating or cooling operation. It is included for backward compatibility.

Heating Night Setback Temperature SP

This is the desired zone temperature during Night Setback with the controller in heating mode.

Heating Occupied Temperature SP

Occupied Heating Temperature Setpoint This is the desired zone temperature during an Occupied state in heating mode

Heating Requirement

Heating calculated value (%) as result of PI algorithm, saved in RAM and used to determine the on time for heating stages.

Heating Unoccupied Temperature SP

Unoccupied Heating Temperature Setpoint This is the desired zone temperature during an Unoccupied state with the controller in heating mode.

HTG Temperature Lower Limit

Lower Limit of user adjust in the Digital Display Wall Sensor in the HTG Control Mode. In deg F/C or in 0.5 deg F/C.

High Fan CLG Enable

The switching between low speed and high-speed fan may be enabled for cooling mode. [Default No]

High Fan Delay Time

High Fan Delay Timer

Used to time when the zone temperature deviates from the active control setpoint by the High Fan Temperature Offset [RAM sec]

High Fan HTG Enable

The switching between low speed and high-speed fan may be enabled for heating mode . [Default No]

High Fan Only CLG Enable

The high-speed fan only may be forced for cooling mode and deadband entered from cooling. [Default No]

High Fan Only HTG Enable

The high-speed fan only may be forced for heating mode and deadband entered from heating. [Default No]

High Fan Output Mask

The High Fan output is used to change fan speed when the zone temperature is outside the setpoint by the High Fan Temperature Offset for a High Fan Delay Time. In switching between High & Low we want to make for 1 second before break.

High Fan Temperature Offset

If enabled, and if the zone temperature deviates from the active control setpoint by the High Fan Temperature Offset for at least the High Fan Delay Time, then the high-speed fan output replaces the low-speed fan. Control is switched back to the low-speed fan when zone temperature has returned to the active control setpoint for High Fan Delay Time.

Holiday Status

Indicates that today is a holiday.

Ignore Globals Enable

If set to [Yes], all commands on the communications line sent using global addressing are ignored. [Yes, No Default No].

Input Raw

The 12 bit raw input value. 0 to 5 Vdc = 0 to 4095. Note: Microprocessor is only accurate to 10 bits.

Input Calibrate 0 Vdc

Action for factory use only.

Input Calibrate 5 Vdc

Action for factory use only.

Input Conversion

The type of conversion assigned to each input. The LSNBL is the Convert Type. The MSNBL is the Input Type

Input Convert

The type of conversion assigned to each input which depends on the Input Type. The LSNBL is the Convert Type. The MSNBL is the Input Type.

Input Fault Limit

HI Fault Limit [Default 240] and Low [Default 3] for inputs

Input Fault Status

Bit pairs show status of faults on inputs 1 through 8. Bit pairs 00 = 0, no fault ;10 = 2 , LO fault; 11 = 3, HI Fault; 01 = 1 reserved

Input Override Status

Shows status of overridden inputs. Bitwise.

Input Type

The type assigned to each input. A1_Input1Type, .., A1_Input1Type (T14,1..8,MSNBL). Input Type = 0, Raw. Input Type = 1, Temperature (3 kohm thermistor). Input Type = 2, AV3300 Airflow Sensor. Input Type =3, User Adjust. Input Type = 4, Static Pressure Slope/Offset (Tracker). Input Type = 5, Humidity (0..100%). Input Type = 6, General

Integral Time

The Integral Time is a PI tuning parameter used for both heating and cooling. The Integral Time is the time required for the integral term to be the same size as the proportional term for a constant error. In units of 0.5 seconds.

Intermittent Fan Enable

If set to [Yes] the Supply Fan operates in intermittent control mode in Occupied State. If set to [No] the supply fan operates in continuous Deadband mode.

Interstage Time

The Interstage Time is the delay between coming on of Fan compressors or heating stages. In seconds.

Interstage Timer

Times interstage and random delay times. In seconds.

Light Blink Timer

Used to time the 60 second wait before turning off lights.

Lights Occupied Enable

When enabled, the lights are on whenever the state is occupied for any reason, or when the lighting schedule says the lights are on. In occupied the push-button toggles the lights on and off.

Lights On/Off 1,2 Schedule

The Lights schedule has entries for two on and off times in 1/4 hour intervals for 8 days: Mon,…,Sun, Hol.

Lights On/Off Mask

The output mask assignment for chilled water On/Off output. Displays output number that has been assigned.

Lights Reversed Enable

When enabled, the output identified by the Lights Output Mask is reversed. When the lights are on, the physical output is Off. When the lights are off, the physical output is ON. The output status, and Output Status - Lights are unchanged.

Lights Schedule Disable

If this is set, then the lights will ignore the daily event lighting schedule. The will turn on only based on the Afterhours push-button during occupied, if Lights Occupied Enable is set and the state is occupied, or communication override.

Lights Scheduled Status

The Lights determined from the Schedule or Occupied if unsynchronized. 1=Lights Off, 2=Lights On, 3=Lights Off, 4=Lights On.

Lockout Cooling

All Cooling stages locked out except economizer.

Lockout Heating

All Heating stages locked out.

Lower Limit CLG Temperature

Lower Limit of user adjust in the Digital Display Wall Sensor in the CLG Control Mode. In deg F/C or in 0.5 deg F/C . See also Digital Display Enable.

Lower Limit (HTG) Temperature Setpoint

Lower Limit of user adjust in the Digital Display Wall Sensor. In deg F/C or in 0.5 deg F/C.

A1_LowerLimitTempSP [deg F], A1_LowerLimitTempSP-half [0.5 deg F],

Mixed Air Temperature

Temperature measured on Input 8 used for Mixed Air Temperature Control.

Mixed Air Temperature SP

Temperature SP for control of Mixed Air Economizer Damper.

Mixed Air Temperature-previous

Previous Mixed Air Temperature measured on Input 8 used for calculating Economizer Cooling Requirement.

Mode Override Status

Indicates the status of Control Mode override: 0 = None, 10 = Deadband OR, 11 = Cooling OR, 12= Heating OR When overridden the heating or cooling requirement are forced to 100% or 0% as appropriate.

Morning Ready Intermittent Fan Enable

If set to [Yes] the Supply Fan operates in intermittent control mode in Morning Ready State. If set to [No] the supply fan operates in continuous Deadband mode.

Morning Ready Schedule

The Morning Warm-up or Cool-down Schedule has entries for one on time in 1/4 hour intervals for 8 days: Mon,…,Sun, Hol.

Night Setback Intermittent Fan Enable

If set to [Yes] the Supply Fan operates in intermittent control mode in Night Setback State. If set to [No] the supply fan operates in continuous Deadband mode.

Night Setback Schedule

The Night Setback Schedule has entries for one on in 1/4 hour intervals for 8 days: Mon, …,Sun, Hol.

OAT Cooling Lockout Enable

All Cooling stages locked out except economizer when Outdoor Air Temp is less than the OAT Cooling Lockout Setpoint.

OAT Cooling Lockout SP

If the outdoor temperature is less than the OAT Cooling Lockout Setpoint and , then all cooling stages except economizer are locked out.

OAT Heating Lockout Enable

All Heating stages locked out when Outdoor Air Temp is greater than the OAT Heating Lockout Setpoint.

OAT Heating Lockout SP

If the outdoor temperature is greater than the OAT Heating Lockout Setpoint and , then all Heating stages are locked out.

Occupancy Afterhours Enable

If the Occupancy Afterhours Enable is yes, the switch on Input #8 is examined at all times to determine if the room is occupied. If Occupancy Afterhours Enable (efOccSensorAsPB) is Yes, the Afterhours feature is triggered by a maintained contact on input 8 in Unoccupied and Night Setback periods. If the Occupancy Status is Yes at the beginning of the UNO or NSB period, or if during UNO and NSB the Occupancy Status

goes true, or if the Occupancy Status is still true at the end of the Afterhours period, Afterhours operation is triggered exactly as if the PB on Input#2 had been pressed. Afterhours Enable does not have to be set. [Default No]

Occupancy Sense Closed

The Occupancy Sensor can be normally open or normally closed. If Occupancy Sense Close (efOccSenseOpen) is no, then Open contacts set the Occupancy Sensor Status to Yes. If Occupancy Sense Close is Yes, then Closed contacts set the Occupancy Sensor Status to Yes.

Occupancy Sensor Enable

Enables operation of an occupancy sensor on Input 8. If the Occupancy Sensor Enable is yes, the switch on Input #8 is examined at all times to determine if the room is occupied .

Occupancy Sensor Status

The Occupancy Status identifies when the room appears to be occupied. If Occupancy Status (rfOccupancy) is No ,and the Control State is Occupied, control is placed in the Unoccupied state. If Occupancy Status is Yes and Occupancy Afterhours Enable is No, control is in the state determined by schedule, override state, or if State Schedule Disable is set or the controller is unsynchronized in the Occupied Control State .

Occupancy Sensor Threshold

The Occupancy Sensor Threshold gives the 8-bit numeric value at which the decision for Occupancy Sensor Status is yes or no. Multiply by 4 to give the 12-bit raw value.

Occupied Schedule

The Occupied Schedule has entries for two on times in 1/4 hour intervals for 8 days: Mon,…,Sun, Hol.

On-Off Thermostat Enable

If On-Off Thermostat Enable is true, then the temperature control algorithm then an on off thermostat action is used to determine the Cooling or Heating Requirement.

Output Override On Status

This variable indicates which physical outputs are overridden. This is now kept in RAM.

Output Override Power-up ON Status

This variable indicates which overridden physical outputs are to be overridden in the ON condition at power-up. This is kept in non-volatile memory.

Output Override Power-up State

This variable indicates which physical outputs are to be overridden at power-up. This is kept in non-volatile memory.

Output Override State

This variable indicates which overridden physical outputs are ON. This is now kept in RAM.

Output Status – Actual

Bitwise representation of physical output states in RAM.

Output Status – Auxiliary Heat

Shows status of Auxiliary Heat Output if Assigned and Enabled. [On, Off, O/R On, O/R Off, Restore]

Output Status – Comp 1 On/Off

The functional Output Status of Comp 1 On/Off. Always BO-2.

Output Status – Comp 2 On/Off

The functional Output Status of Comp 2 On/Off. Always BO-3 if used by the personality.

Output Status – Economizer

The functional Output Status if Economizer Tri-state is Yes and Economizer Open and Close Masks are assigned. Open, Close, Stop, O/R Open, O/R Closed, Restore]

Output Status – Economizer On-Off

The functional Output Status of Economizer On/Off. If Economizer Enable is yes and if Output Mask is Assigned.

Output Status – Fan

The functional Output Status of Fan On/Off. Always BO-1.

Output Status – Heat 1

The functional Output Status of Heat 1 On/Off or Reversing Valve On/Off. Always BO-4. [On, Off, O/R On, O/R Off, Restore].

Output Status – Heat 2

The functional Output Status of Heat 2 On/Off. If used by the personality and if Output Mask is Assigned.

Output Status – Lights

The functional Output Status of Lights On/Off. Output Mask is Assigned.

Output Status – Raw

Bitwise representation of physical output states in RAM.

Output Status – RV

The functional Output Status of Reversing Valve On/Off or Heat 1 On/Off . Always BO-4. [On, Off, O/R On, O/R Off, Restore].

Personality

One of 8 Personalities For Roof Top Air Conditioners.

Primary Calculation

It is usually the cooling requirement for the cooling is 0 to 25500 = 0 to 100%

and is retained as a word value.

Product Identification

Returns firmware identification string.

Reset ASIC

The controller can be reset as if from loss of power upon command. When the controller

is reset it looses time synchronization and clears all RAM values.

RV Mask

It indicates the physical output assigned to Heat 1 Output for AC personalities or RV output for Heat Pump Personalities. Always BO-4. Read Only.

RV Normal

Sets Flag to identify the normal (non-energized) state of the reversing valve. [1=Heating, 0=Cooling] [Default, Cooling].

RV Status

Actual state of the reversing valve based on Output 3 RV status and RV Normal [1=Heating, 0=Cooling]

Secondary Calculation

Secondary calculations 0 to 25500 = 0 to 100% and is retained as a word value, used internally.

Shed Compressor Status

The Shed Compressor Status is set when Active Demand Level exceeds the Demand Shed Level or Demand Rotate Level for the matching Demand Group. The Comp 1, Comp2, Heat 1, Heat 2, AuxCLG and AuxHTG are shed when the Shed Compressor Status is Yes. RV is not shed or changed.

Shed Fan Enable

If Shed Fan Enable is Yes, then the fans are shed when the Shed Compressor Status is set

Shed Fan Status

Shows if the fans are shed.

Slide Switch Status

Switch status on wall sensor. (T10,8,bit 2) slide switch is up ; (T10,8,bit 3) slide switch is down.

State Overridden

This flag indicates that the control state has been overridden from the Scheduled State.

State Schedule Disable

If this option is selected, then the state of the controller is dependent on messages sent on the communication line. Or on the status of the Occupancy Sensor.

State Scheduled

This indicates the control state would be used based on the State Schedules. 1=UNOCC, 2=OCC,3=NSB,4=MRDY.

Synchronize ASIC1

The ASIC/1 controller can be synchronized or put into holiday mode from this entry on the setup screen.

Synchronize Required

ASIC clock is synchronized.

Throttling Range

The Throttling Range is a PI tuning parameter used for both heating and cooling. The Throttling Range gives the error signal that is required to give an output of 100%. In units of 0.1 deg F or deg C. (FW155A,T2,8,BYTE) Throttle Range = 4.0 deg F; Integral Time = 2.5 min ;Calc Time = 30 s, fixed. Max_range = 25500, Output Change = (25500/ThrottleRange)*[ ∆ Error*(CalcTime/Int Time) +∆ ∆ Error]

Trend 1,2 Table & Entry Number

Any 2 parameters contained in the controller's tables may be trended. The table number and entry number for a given table may be determined from the Protocol Document. Trend 1: [Default, Zone Temperature (T16,4)]. Trend 2: [Default, Discharge Air Temp.

Trend Day of Week

The Trend runs continuously whenever the Trend Day of Week is non-zero. 1= Monday. . The trend pointer is kept in RAM and is recalculated based on quarter hour periods since midnight of the Trend Day of Week. Trend Day of Week is rewritten whenever the trend rolls over. It starts fresh after 7 days. [Default, 0]

Trend Interval

The time interval which occurs between reading successive trend values in 15 minute increments. Same for both parameters trended. [0 to 255 *15 min , Default 1 *15 min]. User-changeable . The trend starts each day at midnight. The trend rolls over at midnight and writes a new Trend Day of Week.

Trend Number of Values

Returns the index of the last value trended. The trend pointer is kept in RAM and is recalculated based on non-zero Trend Day of Week.

Trend User Date

The month, date, and hour minutes at which the trend was begun. The user may change the Trend User Date in the course of performing a trend [XX/XX XX]. User-changeable.

Unoccupied Intermittent Fan Enable

If set to [Yes] the Supply Fan operates in intermittent control mode in Unoccupied State. If set to [No] the supply fan operates in continuous Deadband mode.

Unoccupied Schedule

The Unoccupied Schedule has entries for two on times in 1/4 hour intervals for 8 days: Mon,…,Sun, Hol.

Upper Limit (CLG) Temperature Setpoint

Upper Limit of user adjust in the Digital Display Wall Sensor. . In deg F/C or in 0.5 deg F/C . Only in the CLG Control Mode

Upper Limit HTG Temperature

Upper Limit of user adjust in the Digital Display Wall Sensor in the Heating Control Mode.. In deg F/C or in 0.5 deg F/C . See Digital Display Enable.

User Adjust Enable

Enables the User Adjust Option. Requires an input #2 or #3 to be configured for a User Adjust Switch or Variable User Adjust. Permits operation of the slide switch or variable user adjust potentiometer to raise or lower the setpoint by an amount given by the User Adjust setpoint.

User Adjust Setpoint

This is an non-volatile memory variable that represents the number of degrees that the user can adjust the temperature setpoint (either up or down). Default 3 deg Range 0-16 deg F (+/-16)

User Adjust Status

Represents the number of degrees that the user has adjusted the temperature setpoint (either up or down).- User Adjust SP to + User Adjust SP

Water Loop Alarm Hysteresis

Once a water loop alarm is set, the temperature must recover by this much before the alarm is cleared. non-volatile memory setpoints (2-25 F) [Default, 5 F]

Water Loop Compressor Disable

In FW304G a Water Loop Compressor Disable option is included. If the Loop Compressor Disable is Set, then the high or low Water Loop temperature Alarm disables the compressor.

Water Loop Max Alarm Setpoint

The maximum loop temperature non-volatile memory setpoint (35-160 F)[Default, 0 F (disabled)] If the water loop temperature raises above this point a high water loop alarm is set.

Water Loop Min Alarm Setpoint

The minimum loop temperature non-volatile memory setpoint (35-160 F)[Default, 0 F (disabled)] If the water loop temperature falls below this point, a low water loop alarm is set.

Water Loop Temp

Optional Water Loop Temperature measured on Input #7 and rounded to single byte value and saved in RAM.

Water Loop Temp –word

Optional Auxiliary Temperature measured on Input #7, smoothed and converted using Input Convert Type and saved in RAM in 0.01 degrees.

Zone Sensor Bias

Zone Sensor Bias allows adjustment of the zone temperature sensor reading up or down. [Default:0.0 deg] Signed 1 bit per 0.1 deg .

Zone Temp Alarm Range

This value dictates how far from the setpoint the zone temperature must fluctuate before the temperature alarm bit is set. If the difference between the setpoint and the zone temperature becomes greater than the Alarm SP, the alarm bit is set.

Zone Temperature

Zone Temperature measured on the assigned input and rounded to single byte value and saved in RAM. A1_ZoneTemp [degF/C], A1_ZoneTemp-half [0.5 degF/C]

Zone Temperature – New

The most recent zone temperature reading the controller uses for heating/cooling calculation purposes obtained from the input identified as Zone Temperature.

Zone Temperature – Previous

The zone temperature reading from 30 seconds previous that the controller uses for heating/cooling calculation.