When using the AccessMODBUS Gateway (MODBUS Process Gateway) containing a zenon variable which is no longer available in zenon, the AccessMODBUS gateway shows unexpected behaviour when a modbus master writes a value to any variable which is or was configured in the AccessMODBUS gateway.

When using the AccessMODBUS Gateway (MODBUS Process Gateway) containing a zenon variable which is no longer available in zenon, the AccessMODBUS gateway shows unexpected behaviour when a modbus master writes a value to any variable which is or was configured in the AccessMODBUS gateway.

Summary

The AccessMODBUS gateway (MODBUS Process Gateway) shows unexpected behaviour when it contains a variable which is no longer available in zenon and a modbus master sends a write request for any variable which is or was configured in the AccessMODBUS gateway.

Description

The AccessMODBUS gateway (MODBUS Process Gateway) shows unexpected behaviour when it contains a variable which is no longer available in zenon and a modbus master sends a write request for any variable which is or was configured in the AccessMODBUS gateway.

Solution

This issue has been addressed by improving the behaviour the AccessMODBUS gateway checks if a variable exists in zenon.

Issue Number: 38169
Fixed on Date: 18.7.2017
Versions: 7.10 0 BUILD 39359 | 8.00 0 BUILD 46644