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ENC or Enterprise Network Server I/A Series G3 Modbus TCP communications to Modbus devices stop


I/A Series G3 Modbus TCP communications to random Modbus devices randomly drop offline and stop communicating with the ENC or Enterprise Network Server.  Both the modbusCore and modbusTcp modules are at version 3.6.31.

Product Line

TAC IA Series


I/A Series G3, Modbus TCP 3.6.47 and lower


There were a few updates to the Modbus core and TCP modules between 3.6.31 and 3.6.47.


  1. Download the following modules from The Exchange Download Center:
  2. Install to the appropriate I/A Series G3 Workbench modules folder
  3. Upgrade the modules in the ENC/JACE.
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Revision #:
3 of 3
Last update:
‎2018-12-05 10:30 AM
Updated by: