Some Basic Questions on the topic of PLC :

[danishdeshmuk]

1) What is module ?

2) How do we identify that the module is DA (Digital to Analog) or AD (Analog to Digital) ?

3) What are nodes in a PLC setup & why are they used ?

4) I have seen few PLC setup in machines which don't have the external CPU to execute the program. Do they have programming instructions inside their any of the module ?

5) What are Repeaters & ASI Repeaters ? Where do we use them ?

thanks

 

[sapna.dudani@gmail.com]

Automation Systems - Communication Modules
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