![]() Although, CSP is typically only used for a processor directly connected through Ethernet. The device must support Serial DF1 protocol for the serial connection to the processor and either CSP or EIP on the OPC-UA side. Serial DF1 protocol is not supported, so a straight Ethernet to serial converter will not work with the OPC-UA SLC driver. If the connection path is used, the driver will use only EIP protocol on port 44818 and is intended for connection through a DHRIO module residing in a ControlLogix gateway. The driver will keep trying each protocol until a successful connection is made. If an error is received it will then try EIP protocol on port 44818 (this is the protocol used for the NET-ENI interface). If the connection path is blank (empty), it will first try CSP protocol on port 2222. The OPC-UA SLC driver supports multiple protocols and the protocol is determined in the following way: ![]() ![]() So, I thought I would provide some information on the topic. There has been a lot of chatter about connecting to processors through an Ethernet to serial conversion unit.
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