4/4/2016 11:48 AM | |
Joined: 8/8/2014 Last visit: 9/12/2022 Posts: 34 Rating: (0) |
Dear all After this topic https://support.industry.siemens.com/tf/ww/en/posts/s7-1200-modbus-rtu-master-slave-all-in-one/144951/?page=0&pageSize=10 I have bought : 1 x 1214C CPU 2 x CM1241 RS422/485 The fisrt S7-1200 act as Modbus RTU master to read float data from Modbus RTU salve (i'm using Modbus poll to act as slave). In Master block i try to read one float from slave and save to MD50->everything is ok. But when I want to read more float data from a salve and save to DB. I only received 0 value althought i change value from salve Please help me resolve this problem Best regards! AttachmentScreenshots.zip (199 Downloads) |
Last edited by: TienTran at: 4/4/2016 11:49:04 AMLast edited by: Min_Moderator at: 4/4/2016 4:38:55 PMUpload attachments |
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4/5/2016 7:35 AM | |
Joined: 8/8/2014 Last visit: 9/12/2022 Posts: 34 Rating: (0) |
I finish to read and transfer mỏe than one floating point. Thanks ! |
4/5/2016 7:56 AM | |
Joined: 4/28/2015 Last visit: 2/7/2024 Posts: 10533 Rating: (820) |
Hello, but pls post how you solve this problem, can be helpful to others. |
With best regards... |
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