Dear,
what is the advantage of using 230VAC over 24VDC for discrete signals (digital input and outputs)
It is well understood that 24VDC is to be used for safety purposes
however, the client is asking for 230VAC to be used for DI/DO since it can handle better bad environmental conditions (It is used for field instruments far from the PLC in a large sewage treatment facility), please advise.
bad environmental conditions in this area (Kuwait) can be heavy sandstorm, high temperature (which I doubt it will affect)
thank you,
charbel
what is the advantage of using 230VAC over 24VDC for discrete signals (digital input and outputs)
It is well understood that 24VDC is to be used for safety purposes
however, the client is asking for 230VAC to be used for DI/DO since it can handle better bad environmental conditions (It is used for field instruments far from the PLC in a large sewage treatment facility), please advise.
bad environmental conditions in this area (Kuwait) can be heavy sandstorm, high temperature (which I doubt it will affect)
thank you,
charbel