IS-NT-Async-SPI, SW Version 1.2,   ©ComAp – February 2011                                
IS-NT-Async-SPI-1.2.PDF 
 
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Overcurrent  
The output closes if the generator IDMT Overcurrent or Shortcurrent alarm activates. The output opens, if 
none of these alarms is active and FAULT RESET has been pressed. 
ECU comm error  
Output closes if there is an error in the communication with ECU.  It doesn’t matter how the ECU is 
connected – J1939 link or RS232 line. 
PeriphCommErr  
Output closes if there is an error in the communication with any peripheral unit (e.g. IS-AIN8, IGS-PTM, ...). 
CtrlHBeat FD 
BI "CtrlHBeat sens" should be assigned to the output "CtrlHeartBeat" from the other controller. If input signal 
does not correspond to right form (log 1 / log 0 - 500 ms / 500 ms; +/- 100 ms), BO: "CtrlHBeat FD" (Fail 
Detect) is activated. This BO can be used for primary controller blocking (switching to Emerg. manual, 
disconnecting BO, ...) and mainly for disconnecting of BI "Emerg. manual" of this controller. What means that 
the backup controller assumes engine control. 
CAN2 bus empty 
The output closes if the controller doesn’t “see” any other controllers on the CAN2 bus. The output activation 
can be blocked by setpoint Basic settings:CAN2emptDetect
 (So it should be DISABLED for single 
applications.) 
Binary outputs – Configurable prog. states 
ECU 
Indication of J1939 communication fail (configurable between Nop protection, Warning or Shutdown). 
SHBinCfGErr 
Shared Binary module configuration error – i.e. more than one source was configured (is on the CAN2 bus). 
SHAinCfgErr 
Shared Analog module configuration error – i.e. more than one source was configured (is on the CAN2 bus). 
PLC State 1 .. 4 
PLC state indication. 
ECUDiagBlocked 
Output is active when Basic setting: ECU diag = DISABLED.. 
WrongConfig 
Wrong configuration indication. 
Batt volt 
Indication of battery voltage protection based on  Analog protection: Batt >V, Batt <V, Batt V del. 
EarthFaultCurr 
Indication of Earth fault current protection based on Gener protect: EarthFaultCurr and EthFltCurr del. 
Dongle incomp 
Incompatible dongle indication.