I'm currently developing a project that uses the following hardware/software:
My goal is to read only two addresses in the Micrologix 1400: N10:5 and N10:8. As far as I have searched, there are 3 ways to develop the communication:
The first option, OPC Server, is out of question, because of limited budget. However, everytime I search for a guide, I end up in a solution that uses OPC Server. The only solutions that do not use OPC Server are not well explained.
So, my questions are the following:
It is important for me to only use the softwares/hardwares I described above, any other purchases are out of question.
You can use the MODBUS capabilities of the Micrologix 1400. You will have to configure MODBUS TCP in RSlogix and use a couple of rungs of ladder logic to map your N registers to the MODBUS registers. I'm not at a computer with RSLogix but I think the MODBUS configuration is under controller properties or communication properties.
Did you try something similar these links below?
Modbus configuration example for an Allen Bradley Micrologix 1400
Setting up the Allen Bradley Micrologix 1100 & 1400 for Communications via Modbus RTU Slave
I don't know if I am correct, but I understood that you have first to configure the adresses inside RSlogix, as jbesselm said, and as showed on links above.