Modbus Connection Status; Modbus Status Page - Weidmuller SL-MOD-GW User Manual

Reset to factory defaults
This alarm indicates that the device' configuration data was reset to factory defaults. The device requires
re-commissioning.

5.2.2 Modbus connection status

The Modbus Status page shows status and statistics about the Modbus traffic. These values provide
valuable information used to troubleshoot Modbus network problems. This page is automatically updated every
5 seconds.
Illustration 5.3: Modbus status page
Note
This page shows accumulated readings since the SL-MOD-GW was last activated or reset.
If power to the SL-MOD-GW is lost, all cumulative values are reset to zero.
The following statistics are maintained:
TCP status
Status of the TCP/IP connection as per TCP finite state machine (refer to RFC 793). If no client is connected
the status indicates LISTEN. If a client is connected, it's IP address is shown.
Accumulative connections
A counter that increments each time a client opens a Modbus/TCP connection.
Requests
A counter that increments each time an inbound request message is successfully received.
Replies
A counter that is incremented each time a reply message is sent back to the master. This includes exception
replies.
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