IS-NT-Async-SPI, SW Version 1.2,   ©ComAp – February 2011                                
IS-NT-Async-SPI-1.2.PDF 
 
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Inputs and Outputs 
Virtual and physical modules 
Number of I/O can be extended and project wiring can be reduced using the following extension and virtual 
modules. 
 
 
Module name 
BIN 
BOUT 
AIN 
AOUT 
 
 
 
Note 
IGS-NT controller 
x  x  x  x  Number of I/O depends on type. 
IGS-PTM 
8  8  4  1  Standard I/O extension module. 
IS-AIN8 
-  -  8  -  Standard I/O extension module. 
IS-BIN16/8 
16  8  -  -  Standard I/O extension module. 
I-CB 
x X x x Configurable communication bridge. 
IGL-RA15 
-  15  -  -  15 Green, Red, Yellow LED panel. 
I-AOUT8 
-  -  -  8  8 Analog outputs  
 
  
VPIO 
8  8  -  -  Virtual periphery I/O module. 
SHBIN 
8  -  -  -  SHared (virtual) Binary INput module 
SHBOUT 
-  8  -  -  SHared (virtual) Binary OUTput module 
SHAIN 
-  -  4  -  Shared (virtual) Analog Input module 
SHAOUT 
-  -  -  4  Shared (virtual) Analog OUTput module 
PLC 
x  x  x  x  Programmable (internal) logic module. 
 
Hint:
 
For more details about Virtual peripherals (Shared and Internal virtual I/O periphery and PLC) see IGS-NT-
Application guide-2.1.pdf. 
Binary inputs – Control 
Rem start/stop  
If the input closes, the controller starts the engine (in AUT mode only). This input forces the gen-set parallel 
run with mains, as an AMF start usually is managed in different way. 
In SPI / SPtM application (AUT mode) activates the start or stop sequence – start, synchronizing, loading 
ramp, parallel run / unloading ramp, GCB opening, cool-down, stop. 
Emergency stop  
If the input is activated, engine shutdown is immediately issued. It has a character of a “Shutdown” -  
protection type, however some special behaviour follows in the case of its activation: 
-  Outputs Ignition, Ventilation, Cooling pump, Prelubr pump are switched off, regardless of the engine 
state. 
-  This input cannot be overridden with the input Sd override. 
Hint:
 
Alarm type is set to “No protection”, as this input itself creates the shutdown protection. 
Input is inverted (= normally closed) in default configuration to achieve maximum security (broken wire). 
Nominal speed  
If the input is closed, the controller forces the engine immediately to the Running state, bypassing the Idle 
time setting and shortening the start-up procedure. 
Hint:
 
Use this input if you want to shorten the start-up procedure in an AMF situation.