11: Modbus
XPort Pro User Guide
98
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 11-6 Modbus Configuration
2. Enter or modify the following settings:
Table 11-7
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 6: Line and Tunnel Settings on page 32
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.
