4.5.4 Required I/Os
If an I/O that is required for a functionality is missing, ABT Go / ABT Site indicate
this with a configuration check message.
If the required I/Os cannot be detected, ABT Go / ABT Site prompts with a
message e.g. "Output required Supply air fan speed".
Check if all required I/Os for the selected functionalities are defined. Compare your
defined I/Os with the list of required I/Os per functionality below.
Functionalities not mentioned in the list do not require any specific I/O.
Control Functions
Control Functions Selection IO required
Always required Output for supply air fan speed (FanSuSpd)
Output for exhaust air fan speed (FanEhSpd)
Input for supply air temperature (TSu)
Input for outside air temperature (TOa)
Ventilation control Ventilation control 21y,
air volume flow
Inputs for differential pressure supply air fan (DiffPFanSu) and exhaust air
fan (DiffPFanEh)
Ventilation control 22y,
air duct pressure
Input for supply (PSu) or extract (PEx) air duct pressure
Temperature control Temperature cascade control
21y
Input for extract air temperature (TEx) or POS8/QMX3 value for room
temperature (TR)
Dehumidification control Active Input for extract air humidity (HuRelEx) or POS8/QMX3 value for room air
humidity (HuRelR)
Kitchen hood ventilation
operation
Active Input for kitchen hood ventilation (KtchVntIn)
Particulate matter control Active Input for particulate matter in room (PmR)
Air quality control Active Input for extract air quality (AQualEx) or QMX3 value for room air quality
(AQualR)
Plant components
Plant Component Selection IO required
Preheating coil Electric preheating coil 21y Inputs for supply air temperature after preheating coil (TSuAfPreHcl) and
preheating coil overtemperature detector (PreHclOvrT).
Output for preheating coil electric (PreHclElPos or PreHclElCmd)
Brine preheating coil 21y Input for flow temperature preheating coil (TFlPreHcl).
Output for preheating coil pump (PreHclPuCmd)
Earth to air heat exchanger
21y
Output for earth to air heat exchanger bypass command
(EaHxDmpbCmd)
Outside air damper Active Output for outside air damper command (DmpOaCmd)
Energy recovery Rotating heat exchanger 21y Output for rotary heat exchanger speed (RotHExgSpd)
Plate heat exchanger 21y,
with bypass damper
Output for heat exchanger bypass damper (HExgDmpBypPos or
HExgDmpBypCmd)
Heating coil Electric heating coil 21y Input for heating coil overtemperature detector (HclOvrTDet).
Output for heating coil electric (HclElPos or HclElCmd)
Hot water heating coil 21y Input for frost protection temperature for heating coil (TFrPrtHcl).
Output for heating coil water (HclVlvPos or HclPuCmd)
Cooling coil Chilled water cooling coil 21y Output for cooling coil chilled water (CclVlvPos)
DX evaporator cooling coil
21y
Output for cooling coil DX evaporator (CclDxPos or CclDxCmd)
Fire damper Fire damper 21y, motorized Input for fire damper feedback (FdpFb).
Output for fire damper command (FdpCmd)
Dehumidifier free-standing Active Output for dehumidifier free-standing (DhumFrsdCmd)
Configuration
Configuring the hardware
4
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