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ICP DAS, MDC-211-WF user manual , v1.1 Page
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2.5.
Set MDC-211-WF as Modbus Slave
One of the MDC-211-WF Wi-Fi/RS-232/RS-485 ports can be set as Modbus Master or
Modbus Slave (Ethernet port can only be used as Modbus Slave). This section describes how
to set the communication interface as Modbus Slave.
◆
Set communication interface to Modbus Slave
Click "Module Setting"
→
"Modbus RTU/TCP"
→
click "Modify"
→
Select the one of
the " Wi-Fi / RS-232 / RS-485" and set "Modbus Status" as Modbus Slave. Finally, set the
station number (1~255) of MDC-211-WF as the Modbus Slave.
Figure 2.11 Modbus RTU/TCP Protocol parameter setting page
◆
Modbus Internal Register Address of MDC-211-WF
When MDC-211-WF as Modbus Slave, the external controller can indirectly read the data
of the Modbus RTU devices, for its corresponding Modbus Register information, refer to "2.6.2
Inquire Modbus Inner- register address of the corresponding relationship".
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