6/26/2024 10:43 PM | |
Joined: 3/31/2021 Last visit: 7/6/2024 Posts: 4 Rating: (0) |
Hello dear engineers I have used an et200s in a project with s7/300. After making all the settings, connections and addresses, unfortunately, I do not have access to the inputs and outputs of the et200s in the program, even though the network settings and status are connected. I repeated the same scenario with an s7/1200 and an et200s and there were no problems and the data was transferred easily. I use tia portal v16 software. I would like to thank experienced friends who can help me. ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 06/27/2024 10:58:09New subject after splitting. Text formatting optimized. |
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6/27/2024 3:05 PM | |
Joined: 7/7/2010 Last visit: 10/16/2024 Posts: 15319 Rating: (2432)
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In s7-1x00 PLCs, the hardware automatically handles all the I/O automatically for you in the background. In s7-300/400, there are other steps involved in retrieving remote IO data. I am NOT an expert in s7-300/400, so this could be WRONG. I think you have to tell the s7-300 to request the remote Input data, and then once everything is processed, send out the remote output data. That's 2 extra calls that are not needed on s7-1200/1500 PLCs (in nearly all situations).
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science guy |
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6/28/2024 7:03 AM | |
Joined: 4/24/2006 Last visit: 10/17/2024 Posts: 8746 Rating: (1169) |
Hi, Have a look at the following link: Where and when do you need peripheral addressing? Best regards, Wizard |
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