5/24/2019 1:32 PM | |
Joined: 2/22/2008 Last visit: 8/6/2024 Posts: 2698 Rating: (207) |
See attached table to find the right Modbus registers. If the beginning address is 0, then reduce numbers by 1. Regards, Scorp AttachmentModbus Tabelle 1.pdf (391 Downloads) |
This contribution was helpful to1 thankful Users |
5/24/2019 2:08 PM | |
Posts: 24 Rating: (3) |
Hi scorp, According to your table , is it okay to fill the I/O table like this ? (see attachement) |
5/24/2019 2:11 PM | |
Joined: 12/18/2014 Last visit: 9/19/2024 Posts: 33799 Rating: (4199)
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Hello tipstn, do you use SIMATIC IOT2020/2040? Then look at the IOT2000 conference as I wrote. That's simplier. |
5/24/2019 5:07 PM | |
Posts: 24 Rating: (3) |
ixo65, I got your idea. I have an iot2020, I went for the modbus method because I could not install node-red-contrib-s7. I tried several times without a result. |
5/25/2019 11:15 AM | |
Joined: 2/22/2008 Last visit: 8/6/2024 Posts: 2698 Rating: (207) |
I don't know, if it is possible to communicate without a program. I think so that it's enough. With a little test program you are able to look for different functions of Modbus, see attached test program. There are comments for the right registers and the function codes you can see in my table. If have activated 2 servers, Modbus and S7. You can delete one of them, but it doesn't matter for testing with both servers. Regards, Scorp AttachmentTest.zip (220 Downloads) |
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