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.