IGS-NT Combi, SW Version 3.0,   ©ComAp – May 2013                    
IGS-NT-Combi-3.0 Reference Guide.PDF 
 
Modbus Reading and Writing 
Controller supports Modbus Slave functions (an external device may write or read from a controller). Modbus 
registers corresponding to objects in the controller can be exported to text form in GenConfig. 
 
 
Figure: Exporting of Modbus registers 
 
If Modbus Master function is required extension module I-CB/Modbus connected via CAN1 can be used. For 
more information on how to use this module please refer to InteliGen/InteliSys Communication Guide and to 
I-CBEdit manual.