I have a device that has three different communication protocols: OPC DA, Ethernet IP, and Modbus. The question I have for the community is which protocol would be best to use for communicating with Ignition? What are the pros and cons?
PS I am using 8.0.xx
EtherNet/IP likely isn’t an option because we don’t have a generic ENIP driver, we have a Logix driver that happens to use ENIP.
OPC DA can be a pain to work with and establish a connection but the benefit will be that you can browse for your data points and pull them in as tags easy.
Modbus will be easier to get connected but you’ll have to create every tag in Ignition by hand and know the equivalent Modbus address for the data point in the device.