11-30-2016 07:51 AM
Hi,
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.
Kind regards,
André Kruger
12-06-2016 05:16 AM
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.
12-07-2016 10:38 AM
Hello andkrugeralves,
Did you try something similar these links below?
Modbus configuration example for an Allen Bradley Micrologix 1400
http://www.mesta-automation.com/modbus-configuration-example-for-an-allen-bradley-micrologix-1400/#p...
Setting up the Allen Bradley Micrologix 1100 & 1400 for Communications via Modbus RTU Slave
http://www.plcengineers.com/micrologix_modbus_rtu.html
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.