Table 6-4: Troubleshooting Modbus Communications (continued)
Issue Troubleshooting steps
Can not communicate
using secure Modbus
TCP
1. Verify the Security Setup Utility has been installed.
2. Configure a Secure Modbus Proxy for the Gateway. See Section 4:
Commissioning.
3. Verify secure/unsecure Modbus protocol settings in the Gateway.
Log on to the Gateway and navigate to SETUP → SECURITY →
PROTOCOLS.
4. Verify the Modbus TCP communications settings in the Gateway.
Log on to the Gateway and navigate to SETUP → MODBUS →
COMMUNICATIONS.
5. Verify Modbus register mapping in the Gateway. Log on to the
Gateway and navigate to SETUP → MODBUS → MAPPING.
Table 6-5: Troubleshooting OPC Communications
Issue Troubleshooting steps
OPC application can not find a
Gateway OPC server
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 Section 4:
Commissioning.
Gateway OPC server does not
show any Gateways
1. Configure an OPC proxy for the Gateway. See Section 4:
Commissioning.
Gateway OPC server does not
show any data tags
1. Configure the Gateway OPC Browse Tree. Log on to the
Gateway and navigate to SETUP → OPC → OPC BROWSE
TREE.
2. Verify the connection status for the OPC proxy in the
Security Setup Utility.
3. Verify if the OPC proxy is configured for secure or unsecure
communications.
4. Verify secure/unsecure OPC protocol settings in the
Gateway. Log on to the Gateway and navigate to SETUP →
SECURITY → PROTOCOLS.
5. Verify network firewall and port settings.
Table 6-6: Troubleshooting EtherNet/IP
Issue Troubleshooting steps
The Gateway is not publishing
the parameters
1. Verify connection is established with Ethernet/IP. Navigate
to SETUP → SECURITY → PROTOCOLS.
2. Reference Emerson Wireless Gateway to Allen-Bradley
®
Integration Manual.
Troubleshooting Reference Manual
September 2020 00809-0200-4420
60 Emerson.com/Rosemount
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