https://forge.codesys.com/forge/talk/Engineering/thread/a6eb7e09a4/2022-12-03T16:52:06.715000ZRecent posts to Read micro second signal with industrial plc2022-12-03T16:52:06.715000Z2022-12-03T16:52:06.715000Zsgronchihttps://forge.codesys.com/u/sgronchi/https://forge.codesys.com90b9e19409b0537ecae0759c0a6f7a89ed749a5d

<div class="markdown_content"><p>It's probably done in the hardware. You should ask the manufacturer, typically the peripherals that do that stuff already have both the high/low time and the period information.</p></div>

2022-12-03T14:40:24.545000Z2022-12-03T14:40:24.545000Za-simonehttps://forge.codesys.com/u/a-simone/https://forge.codesys.com751b86fc1115aeb16eeaa9baf93ca2b52b89b82c

<div class="markdown_content"><p>Dear, </p> <p>I'm mechatronic engineer using Codesys from some years.</p> <p>I have a PLC application with cycle time 10 ms.<br/> I have a library provided from the plc supplier able to read the period of the input digital signal with precision of 1 us (micro-second) and it works very well.</p> <p>My need is to read about the same digital signal, not the period, but the high level time with precision of 1 us. Because I have high level time that is variable and I want to rread it.</p> <p>Example I know that the signal has period of 100000 us and high level time of 500 us.</p></div>