IGS-NT-BC, SW Version 1.2.0, ©ComAp – January 2019
IGS-NT-BC-1.2.0 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.
User MODBUS
Users can define Modbus registers from 42873 to 43000. Values, setpoints and Alarm states can be
specified for these new Modbus registers to prepare the Modbus protocol for batch reading and writing or to
standardize Modbus protocol between FW versions or branches.
User Modbus register number
Standard Modbus register number
Communication object number
Value, Setpoint, Alarm state
Select type
Select object
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