Why Won’t my Ethernet CPU communicate with the Software?

Before using any of our Ethernet CPU’s we advise using our Device Manager software to configure them for your needs.
The Ethernet CPU can act as either a Server (Slave) or Client (Master) and needs setting to how you wish it to behave.

Other issues that may cause communication problems are:
– Not using an Ethernet crossover cable when connecting directly to the CPU from a PC.
– PC and CPU have different IP address range settings – They must be on the same subnet.
– The CPU program is using Modbus/TCP communications in its code. Stop program before trying to communicate.
– There is already an IP address on the network that is the same as the CPU IP address and therefore there is an IP conflict.

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