Safety relay system

Details Safety relay system Safety relay system

2004-06-30

2008-08-12

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Personnel safety or limit control features

Reexamination Certificate

active

07411319

ABSTRACT:
A safety relay system includes one or more additional input units each for sending safety input from a safety component, a master unit for receiving the safety input from the additional input unit and providing safety output to operate a safety relay based on the safety input, a safety information line for transferring safety information between the units, a non-safety information line for transferring non-safety information separate from the safety input, the non-safety information being information concerning an operation state of each safety component or each unit, and a non-safety information output section for outputting the non-safety information transferred on the non-safety information line.

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