IM151-8 (2x) with S7-connection and PUT&GET refusing to work
Created by: wideko at: 7/20/2017 11:12 AM (2 Replies)
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| 7/20/2017 11:12 AM | |
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Dear experts, I'm asked to create a S7-connection and use PUT&GET for transferring the data. Both IM151-8 are in the same network and the data to be transferred is only a few bytes to start with. Download the examples with PUT&GET in S7-300 and in S7-400 and created my own 2 projects. One project with the partner-PLC (with the same DB's for communication and in a FB just some bit-handling which has to be transferred). And a project with the Project-PLC and the hardware of the partner-PLC. In the project-PLC the S7-connection is configured in the NetPro. The PC is connected to the partner-PLC at P3, online and software-transfer is possible to both PLC's. Both the IM151-8 are connected to each other at P1R. The STATUS of the PUT&GET call's is both 'ERROR', with status = 16#0001. The Request for both PUT&GET are not enabled. Who can help me to solve this problem? What am I doing wrong? I have followed the example-projects and a lot of the information I've read at this wonderfull forum. But still the communication is not working. In the attachment I have collected some screenshots with online-status.ed Regards, AttachmentS7-Connection.zip (64 Downloads) |
| 7/21/2017 4:08 AM | |
Joined: 10/7/2005 Last visit: 3/20/2025 Posts: 3042 Rating:
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Hello wideko as you have the two PLC's in two different S7 projects, you need to use a unilaterally configured S7 connection. You used a bilaterally configured S7 connection for which you had to make a "virtual" copy of the partner PLC101 in your Patatkram PLC131 S7 project and as I fear this is the source of your problem, please try the following:
Have a look too at What differences are there when configuring S7 connections? for more on bilaterally and unilaterally configured S7 connections. I hope this helps |
Last edited by: fritz at: 7/21/2017 9:27:39 AMCheers |
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