Need Help programming communication block on Schneider Ecostruxture Basic

[eng_plc]

Hello there,

I'm practically new to the PLC world, I'm quite familiar with Siemens TIA Portal but I'm currently tasked to program Schneider PLCs model: "TM221CE24R"

I'm using Ecostruxture basic, its pretty straight forward for most of the stuff. However, when it comes to communication between the 2 PLCs, its a bit complicated. I need to read inputs from PLC1 and use them in PLC2.

If someone is familiar with the concept, please message me to discuss the specifics.

TLDR; I need help programming a communication block between 2 Modicon221 PLCs

 

[drbitboy]

Modbus is likely at least one option.

 

[Steve Bailey]

How many signals and how far apart are the two PLCs? If the number is small enough, and he distance short enough, wiring outputs from one PLC to inputs on the other is a viable option. It is also possible to wire a field device to more than one PLC.

 

[L D[AR2P#0.0]]

If you have Ethernet ports you could use UDP to communicate between the two plcs, I did this for comms between an M251 and S7-1500 plc.

 

[Saffa]

Its a bit complex to set up the first time, but once it's working it's alright... although looking at the latest version it seems this has all changed a bit so my steps below might need tweaking...

Look under the configuration tab, you'll have ETH1, then Modbus TCP IOScanner. Enable it via the tick box, add a device and a "Channel" which is where you configure whether you are reading or writing, how many bits / words, and address offset.

Set up your one PLC to read the inputs from the other.

In the "slave" unit that is being read from, enable Modbus mapping. Ensure same Unit ID as the IOScanner on the other PLC. Define the number of input and output registers.

I haven't tested this in hardware, so hopefully that's right. Maybe try looking for a Youtube video on M221 IO scanner!

 

[eng_plc]

Thanks for your feedback
Turns out googling the exact term "M221 IO Scanner" leads to the SE link on how to program the process step by step!
https://www.se.com/ww/en/faqs/FA408528/