1/28/2021 11:08 PM | |
Joined: 9/1/2017 Last visit: 7/9/2024 Posts: 156 Rating: (19) |
Hi For accurate answer please give the order number of your modules, and specify which terminals you measure the voltage exactly. In your case the difference is src type has source input channel ( 24vdc from input pin caues current goes through instrument and returns to m pin if switch contact closed for example, so you have 24vdc on your input pin if switch is open),where as hf type has sink input channel. Regards hosein Edit: i reviewed this post and i found my explanation is not clear. So please see this links for sample: Control Basics: The Difference Between Sink and Source Logic Regards |
Last edited by: hosein8419 at: 02/28/2021 23:52:22 |
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