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13: Modbus
EDS User Guide 111
Modbus Configuration
This web page shows the current negotiated Modbus settings and allows configuration changes.
To view and configure the Modbus Server:
1. Click Modbus on the menu bar and then click Configuration at the top of the page. The
Modbus Configuration page appears.
Figure 13-4 Modbus Configuration
2. Enter or modify the following settings:
Table 13-5 Modbus Configuration
3. Click Submit. The changes take effect immediately.
Note: The serial line protocol must also be configured for Modbus, in addition to
configuring the Modbus server. See Chapter 9: Line and Tunnel Settings on page 52 for
details.
Modbus Configuration
Settings
Description
TCP Server State If On, the Modbus server is active on TCP 502.
Additional TCP Server Port If present, is used in addition to TCP port 502.
Response Timeout The number of milliseconds to wait for a response on the serial
side. The device returns exception code 11 to the network
master controller if the slave serial device fails to reply within
this time out.
RSS Trace Input If On, each PDU received on the Modbus serial line creates a
non-persistent descriptive item in the RSS feed.