8/18/2019 4:50 PM | |
Joined: 12/6/2016 Last visit: 6/12/2023 Posts: 57 Rating: (0) |
welcome everybody I have a question about how to control the engine speed through PLC By sending the frequency from the memory number (for example: VD100 = 50 , 60 , 70 or 100) on the HMI display connected to the PLC and then to the frequency inverter Responsible for determining engine speed using (RS485 or RS 232) Recommended : RS 232 My tools: 1- Plc ( CPU 226 - 6ES7216-2AD23-0XB0 ) [snip] -------------------------------- 2- HMI -------------------------------- 3- frequency inverter ( Lenze 8200 vector or Lenze i550 ) [snip] [snip] ------------------------------- Please help by sending an example of my request
AttachmentDevices.zip (222 Downloads) |
Last edited by: Ahmad Altonji at: 08/18/2019 17:02:21Last edited by: Ahmad Altonji at: 08/18/2019 17:03:40Last edited by: Jen_Moderator at: 08/19/2019 13:16:52Removed links and added files as an attachment. Al-Nassim Company |
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8/20/2019 12:57 AM | |
Joined: 3/9/2018 Last visit: 8/31/2024 Posts: 189 Rating: (14) |
This is a very basic example. VD100 = 3200 = 10V = 100% VD50 = 1600 = 5V = 50% VD1 = 320 = 0.1V = 1% To scale the output you can consider using the following FAQ: How can you scale analog values with S7-200 in conjunction with CPU224XP and expansion modules EM 231, EM 232 and EM 235? https://support.industry.siemens.com/cs/ww/en/view/27043396 |
Last edited by: Henry1675 at: 08/20/2019 01:04:04Last edited by: Henry1675 at: 08/20/2019 01:23:04 |
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8/20/2019 9:05 AM | |
Joined: 12/6/2016 Last visit: 6/12/2023 Posts: 57 Rating: (0) |
Thank you The problem has been resolved But in case i want to repeat the process for 5 times BY USE EM232 AQ4+EM232 AQ2 I mean I want to outputs analog repeat the process with switching AC0 to AC1 - AC2 - AC3 - AC4 and outputs AQW0 to AQW2 - AQW4 - AQW6 - AQW8
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Last edited by: Ahmad Altonji at: 08/20/2019 14:10:45Al-Nassim Company |
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8/20/2019 4:29 PM | |
Joined: 12/6/2016 Last visit: 6/12/2023 Posts: 57 Rating: (0) |
SORRY i can use just AC0 to AC3 in all cpu |
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