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I am unable to enter a valid IP address of a Modbus Device.
Device IP: 10.72.0.68
PLC IP: 10.72.26.133 / 255.255.255.192 / 10.72.26.129
Attempting to enter 10.72.0.68 gives the error
"IP Address and Gateway address are not in the same domain".
Of course this is exactly what a gateway is for on the PLC's IP settings.
The client device IP is valid but as a client connection should not even have an option to enter a gateway let alone create its own random gateway address as Control Expert seems to do.
Does anyone have any idea how to get around this issue? doing the exact same on an NOC card works fine.
Any idea how to modify or remove gateway addresses from clients?
Are there any plans to fix IP addressing in the M580 / Control Expert.
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Hi,
The subnet mask of 255.255.255.192 will divide the 10.72.0.0 network into 4 subnet of 64 addresses each.
Your PLC is in the 10.72.0.128 - 10.72.0.191 subnet and the device is in the 10.72.0.65 - 10.72.0.126 subnet
To fix you can either change the subnet mask to 255.255.255.0 or select address for the device in the 10.72.0.128 - 10.72.0.191 range.
Regards,
Hennie Smith
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