Applies To: |
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Summary: |
I have a Modbus I/O Device with address 0. But the Citect does not allow reading to it. What is wrong? |
Solution: |
From the Modbus driver version V2.4.4.242,
the address 0 is reserved as broadcast address, so no read request
can be sent to it. From the version V2.5.2.0, there is a Citect INI
setting to turn off the broadcast.
The setting is down to the I/O Device level. For example, if want turn off the broadcast in iodev1, which is in the port1, then [modbus.port1.iodev1] |
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