IS-NT-Async-SPI, SW Version 1.2,   ©ComAp – February 2011                                
IS-NT-Async-SPI-1.2.PDF 
 
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StartButnEcho  
StopButnEcho  
FltResButnEcho   
HrnResButnEcho  
GCBButnEcho 
These outputs are active for 1s if the corresponding button is pressed or binary input gets active or remote 
command is issued (from PC software, SMS, ...).  
CtrlHeartBeat  
The output signalizes watchdog reset. In a healthy state it flashes at 500ms : 500ms rate. It stops flashing 
when the unit reset occurs and the new controller start-up fails. 
Bin selector 1-4  
Any of the four outputs is active according to the corresponding setpoints Bin selector X. These are used for 
particular ECU settings. 
Logical 0  
Constant value that can be configured to any output. 
Logical 1  
Constant value that can be configured to any output. 
TimerAct 1-4 
TimerAct 5-8 
TimerAct 9-12 
TimerAct 13-16 
These outputs are active if at least one of their assigned timer module channels gets active. Timer module 
channels are organized into groups of four. 
TimerActiveCom 
This output is a logical OR (Com = Common) of the outputs TimerAct 1-4, 5-8, 9-12, 13-16. It gets active if 
any timer module channel is active. 
kWh pulse 
The output generates 1 sec pulse in case that the kWh value increases. 
Binary outputs – Fixed protection outputs 
Alarm  
The output closes if any alarm comes up. It opens if FAULT RESET is pressed. The output closes again if a 
new fault comes up. 
Alarm flashing  
If any alarm comes up, the output starts periodic closing/opening with period 1s/1s. It opens and stays open 
if FAULT RESET is pressed.