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Urgent, need advice

2016-05-17View Original

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Can 4-20ma analog signals trigger a relay? Does it have to be a digital signal?
Reply #22016-05-17
Solid-state relays that accept 4–20mA analog signals.
Reply #32016-05-17
General analog signals do not pass through relays
Reply #42016-05-18
How to convert an analog signal into a digital signal? Can a secondary meter directly output a switch signal?
Reply #52016-05-18
Analog signals can be fed into the system first, and then an A/D converter can be added in the configuration; some safety gates also have this functionality

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Translated at 2026-07-21 00:14:15

Original: https://bbs.hcbbs.com/thread-1586872-1-1.html

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