Explain The Role Of Rack Or Chassis In Plc System ?

1.	Explain The Role Of Rack Or Chassis In Plc System ?
Answer» A hardware assembly, which houses the processor, communication and I/O modules. It does following functions. Power DISTRIBUTION CONTAINMENT of I/O modules Communication path between I/O module and CPU The chassis are available in different slots in various PLC systems. ADDITIONAL chassis can be CONNECTED using chassis interconnecting CABLE.

Answer»

A hardware assembly, which houses the processor, communication and I/O modules.
It does following functions.
Power DISTRIBUTION
CONTAINMENT of I/O modules
Communication path between I/O module and CPU
The chassis are available in different slots in various PLC systems. ADDITIONAL chassis can be CONNECTED using chassis interconnecting CABLE.

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