Our PLC guy decided to try out an Automation Direct Do-More. We have device successfully connected using Modbus TCP driver. Does anyone have an example on how to map out the tags so we can work with them in designer? Everything else we have is Allen Bradley, so we have yet to do one of these.
I am probably way too late to help you, but I am doing my first project with Automation DIrect PLC communication. I downloaded a csv file “template” found at the very bottom of this page:
https://inductiveautomation.com/downloads/extra-material
I followed the guidance in the Ignition Help for Modbus Mapping to add that mapping template to my Device configuration. There was an error when I tried to save it. My version of Ignition didn’t like the “C” prefix in the template for coils, so I changed it to “CR” and it took it.
Next, I have User Data Types with parameters that I needed to use with the addressing scheme made possible with the device mapping. So I made a new tag and browsed the OPC server to pick an address so that I could view how it ended up looking:
ns=1;s=[MAIN]1.Vbcd1400
(my device is named “MAIN”).
So I took that format and pasted part of it into my UDT tag using my parameter {Base} where Base is an integer representing the “Base” address of each UDT structure in use.
To expand further on this example, I have 7 wells each with 8 integers holding bits and integers from each well. The flow rate is the 4th item. My UDT is set up with FlowRate as a tag within it addressed to ns=1;s=[MAIN]1.Vbcd{Base+4}
A tag of Type “Well” named Well_1 has its parameter “Base” set to 6100, so when i drill into it and find FlowRate, its OPC item path is ns=1;s=[MAIN]1.Vbcd6104
I can’t test all of this until I can install the application on site and connect to their PLC, but if something is not right, by using the addressing template and UDT structures, I should only have to make adjustments in a very few places to correct the addressing of the whole application.
Okie,
Those templates are for the DL240 and DL250 processors. He was talking about a Do-More processor.
For the Do-More processors (and the BRX line), the native registers will need to be specifically mapped to Modbus registers inside the ladder program. This was a specific design decision by Host to limit access to the memory registers in this way.
Just thought I’d point that out for others finding this post.
Brian
We are actually doing a DL250 now as well. Your post was very helpful, Thanks!