Modbus Reading And Writing; User Modbus - ComAp IG-NT GC Reference Manual

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.
Value, Setpoint, Alarm state
Communication object number
Standard Modbus register number
User Modbus register number Select type
Select object
N :
OTE
User MODBUS function is not available for IM-NT-GC controller.
Inteli NT GeCon-MARINE SPI, SW Version 3.2, ©ComAp – July 2015
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IGS-NT-GeCon-MARINE-SPI-3.2.PDF