What is the difference between AC/DC and DC in PLC outputs?

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    Ac/dc Dc Plc
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The discussion centers on the differences between AC/DC and DC outputs in PLC systems. The user is considering a beacon light for a PLC with 24 V DC outputs and is unsure whether to select the 24 V AC/DC option. It is clarified that AC/DC indicates the device can operate with both AC and DC input voltages, thanks to an internal rectifier. The consensus is that the 24 V AC/DC option is suitable, as it can handle the 24 V DC output from the PLC. Understanding these voltage specifications is crucial for proper device compatibility in PLC applications.
salman213
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I am a student trying to learn about PLCs.

I was buying a light (beacon) to install on my PLC and had a question about the output voltage. On the PLC I saw that the outputs are 24 V DC. On the beacon I am ordering, the options are:


12V AC/DC Full Voltage
24V AC/DC Full Voltage
120V AC Full Voltage
240V AC Full Voltage


I am assuming I should order the 24 V AC/DC, but I was wondering what does AC/DC mean. Is AC/DC different then just DC. Is that even the correct one since the output card provides 24 V DC?



Thanks!
 
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I'm guessing that it means the light has an input rectifier, so it can be used either with a DC or AC input voltage.
 
Yea, I just asked someone here and they said it meant that it can work with both 24 V DC or AC, since the RMS of the 24 AC will be enough to run it.

thanks :)!
 
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