7/10/2018 3:53 PM | |
Posts: 9 Rating: (0) |
Hello guys, I don't know how can I get "Holding Register", "Input Register" and "Coil/input Status" from master. Anybody help me, How do i convert the Modbus ASCII in PLC-S7 1214C so i can monitoring and control these actuator from a Master. If Anybody have ever did it last time, I need all of you help me. I give you manual communication these slaves(Modbus-Ascii). I do appreciated thanks lot of all off you who share me. AttachmentModbus ASCII (RS422) Actuator.pdf (649 Downloads) |
Last edited by: Batak at: 7/10/2018 3:55:37 PM |
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7/10/2018 10:02 PM | |
Joined: 7/7/2010 Last visit: 9/20/2024 Posts: 15213 Rating: (2417)
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This MB/ASCII protocol specification document may help you: http://modbus.org/docs/PI_MBUS_300.pdf Start on page 6 according to the table of contents. MB/ASCII and MB/RTU are very different methods of communicating. You can write all that is required to make it work (a difficult task for most), or you can refer to the first link I found while using the "Search in Online Support" box with "TIA Portal Modbus ASCII" as the search phrase. https://support.industry.siemens.com/tf/WW/en/posts/modbus-ascii-protocol/146728?page=0&pageSize=10
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science guy |
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This contribution was helpful to1 thankful Users |
2/10/2021 1:08 PM | |
Posts: 1 Rating: (0) |
I'm wrote a pared-down realisation of Modbus ASCII master/ Only 0x03 and 0x06 functions for reading and writing one holding reg/ TIA 15.1 project for S7-1214C with CB1241 in attachement It's not ended and not so good, but I think it's will be helpfull for writing your own realisation with PTP Hope this will help somebody AttachmentMB_ASCII_master_20210210_1451.zip (684 Downloads) |
This contribution was helpful to4 thankful Users |
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