Recommended actions
1. Verify the Security Setup Utility has been installed.
2. Configure a secure Modbus proxy for the Gateway (see Security setup utility).
3. Verify secure/unsecure Modbus protocol settings in the Gateway
a) Log on to the Gateway.
b) Navigate to SETUP → SECURITY → PROTOCOLS.
4. Verify the Modbus TCP communications settings in the Gateway.
a) Log on to the Gateway.
b) Navigate to SETUP → MODBUS → COMMUNICATIONS.
5. Verify Modbus register mapping in the Gateway.
a) Log on to the Gateway.
b) Navigate to SETUP → MODBUS → MAPPING.
6.16 OPC communications: OPC application cannot
find a Gateway OPC server
Possible cause: Incorrect Security Setup Utility installation
Recommended actions
1. Verify the Security Setup Utility has been installed on the same PC as the OPC
application.
2. Configure an OPC proxy for the Gateway (see Security setup utility).
6.17 OPC communications: Gateway OPC server
does not show any Gateways
Possible cause: Proxy not configured
Recommended actions
Configure an OPC proxy for the Gateway (see Security setup utility).
6.18 OPC communications: Gateway OPC server
does not show any data tags
Troubleshooting Reference Manual
September 2020 00809-0200-4410
50 Emerson.com/Rosemount
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