Code 16#0203 is communications time out
I am not familiar with the softlogix kit but normally communications problems with Logix kit on Ethernet is down to RPI rate set during hardware configuration. The default setting is 5ms which tends to swamp the network.
In RSLogix 5000 check each Ethernet connected piece of hardware by right clicking and selecting properties, then select connection tab. The RPI rate can then be set to a more network friendly figure, try 100ms or if the system can stand it 250ms
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If it can be put off till tomorrow are you sure you need to do it at all
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