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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)
how to control the engine speed through PLC CPU226
in Siemens
Posted
Recommended : RS 232
https://www.altonji.net/up/do.php?img=1530
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https://www.altonji.net/up/do.php?img=1529
https://www.altonji.net/up/do.php?img=1531
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