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Input plc S7-1200, flow sensor

Created by: autokabyl at: 5/16/2019 9:02 AM (17 Replies)

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5/16/2019 9:02 AM	Rate (0)
autokabyl Advanced Member Joined: 3/27/2018 Last visit: 7/31/2024 Posts: 47 Rating: (0)	Good morning, can you help me with the wiring of a flow sensor? I have a PLC S7-1200 DC / DC / RELY. sensor: flow sensor, GEORGE FISCHER, open collector output, I attach the technical doc in attachment. when I am wiring my sensor to the PLC, I can not detect the impulses, the LED of the sensor input does not light up. best Regards. Attachment 515-2536 Rev X English Manual.pdf (316 Downloads)

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5/16/2019 9:10 AM	Rate (1)
#dP Posts: 2826 Rating: (686)	autokabyl open collector output You are in need for a pull-up resistor. to pull up the output to 24Vdc. Do a web search on how it is done.
#dP Posts: 2826 Rating: (686)
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This contribution was helpful to 1 thankful Users autokabyl

5/16/2019 9:34 AM	Rate (0)
Jay. Posts: 1283 Rating: (105)	Hi #dP, Pull up resistor and Optocoupler Relay works the same way?
Jay. Posts: 1283 Rating: (105)
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This contribution was helpful to 1 thankful Users autokabyl

5/16/2019 9:40 AM	Rate (0)
autokabyl Advanced Member Joined: 3/27/2018 Last visit: 7/31/2024 Posts: 47 Rating: (0)	#dP autokabyl open collector output You are in need for a pull-up resistor. to pull up the output to 24Vdc. Do a web search on how it is done. thank you, the automaton arrives has detected the sensor against the led of the entry remains alum, it remains always in the state 1, there is no pulse. % I0.0,% I0.1,% I0.2 is a fast count of entries ?? Is there a hardware configuration at the channel level for this type of sensor?

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5/16/2019 10:22 AM	Rate (0)
Jay. Posts: 1283 Rating: (105)	You need to enable High Speed counter function if the pulses are faster? Just do a search for HSC in SIMATIC Technology topics, you will get an answer for the configuration.
Jay. Posts: 1283 Rating: (105)
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5/16/2019 11:38 AM	Rate (0)
autokabyl Advanced Member Joined: 3/27/2018 Last visit: 7/31/2024 Posts: 47 Rating: (0)	Jay. You need to enable High Speed counter function if the pulses are faster? Just do a search for HSC in SIMATIC Technology topics, you will get an answer for the configuration. hi Jay, i enable the Input in HSC and i do the configuration, But my sensor it doesn't send impulse

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5/16/2019 12:03 PM	Rate (0)
Jay. Posts: 1283 Rating: (105)	Then please see what #dP already suggested. what is the output voltage from your sensor?
Jay. Posts: 1283 Rating: (105)
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5/16/2019 2:00 PM	Rate (0)
autokabyl Advanced Member Joined: 3/27/2018 Last visit: 7/31/2024 Posts: 47 Rating: (0)	Jay. Then please see what #dP already suggested. what is the output voltage from your sensor? I did what #dp suggested to me, the problem is that my sensor is powered but it must return impulses #dp ? an idea about the problem Attachment Capture.PNG (303 Downloads)

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5/16/2019 2:09 PM	Rate (0)
Jay. Posts: 1283 Rating: (105)	For HSC configuration you already changed the filtering rate to lowest possible update rate. Check your DI input for the update rate settings. I am not sure the problem is with your configuration or the sensor.
Jay. Posts: 1283 Rating: (105)
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5/16/2019 2:52 PM	Rate (0)
autokabyl Advanced Member Joined: 3/27/2018 Last visit: 7/31/2024 Posts: 47 Rating: (0)	Jay. For HSC configuration you already changed the filtering rate to lowest possible update rate. Check your DI input for the update rate settings. I am not sure the problem is with your configuration or the sensor. that's the part of the setup and the program I did, if you can open it Attachment Project_Test.zip (276 Downloads)

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