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Showing results 1 to 4 of 4 Search took 0.00 seconds. Search: Posts Made By: parky

Forum: LIVE PLC Questions And Answers September 19th, 2023, 03:43 PM

Replies: 59 Chemical dosing pump Views: 5,684 Posted By parky Well it took me about 10 mins to code this... Well it took me about 10 mins to code this assumes that the process is on low level & the run latch is on then the water valve opens and the chem dosing valve, it also assumes the chem dosing is...

Forum: LIVE PLC Questions And Answers June 26th, 2023, 05:16 AM

Replies: 59 Chemical dosing pump Views: 5,684 Posted By parky Assuming you are using a PLC with PNP input i.e.... Assuming you are using a PLC with PNP input i.e. 24v as a signal then as the output of the transistor in the flowmeter being NPN it actually pulses down i.e. sinks. So use a pull up resistor...

Forum: LIVE PLC Questions And Answers June 26th, 2023, 03:57 AM

Replies: 59 Chemical dosing pump Views: 5,684 Posted By parky The output is open collector, (NpN) in other... The output is open collector, (NpN) in other words it will not drive a PNP type input, if the PLC is capable of sink/source connection should be ok if connected properly, or you could try connecting...

Forum: LIVE PLC Questions And Answers June 12th, 2023, 03:48 AM

Replies: 59 Chemical dosing pump Views: 5,684 Posted By parky I agree with DR: need more information, however,... I agree with DR: need more information, however, there are a number of things that you have sort of duplicated for example the two memories for the Water & chemical you have a not high level sensor...

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