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S7-312c

11/13/2018 12:27 PM	Rate (0)
serby1993 Posts: 2 Rating: (0)	Hello, I need to read a frequency generated by a signal generator on 2 wire, using an S7-312c to read frequencyes masurements, can you help me with an example of wire connection and an example? Thanks a good day.
serby1993 Posts: 2 Rating: (0)
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11/13/2018 12:37 PM	Rate (0)
Duris_I Diamond Member Joined: 4/28/2015 Last visit: 11/27/2025 Posts: 10970 Rating: (844)	Hello, I recommend for first check documentation of your freq generator, maybe some diagrams are existing with different connections. Next recommendation is find (Search right up input field of this page) manual to CPU 31xC types where you can check HW cfg and description of available inputs for frequency measurment.
	With best regards... Ivan Duris Flight: OMICO
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11/13/2018 1:20 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 1/14/2026 Posts: 12481 Rating: (2722)	Hello serby; To add to Duris_I's reply, here is a sample project (in Simatic Manager) that can provide guidance on the CPU side: How do you use the built-in function "Frequency Measurement " of the S7 CPU 31xC? Hope this helps, Daniel Chartier

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