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3-7 [ORB]
Parallel connect the
serial circuits
Two or more contactors are called "serial block". If parallel connect the serial block, use LD,
LDI at the branch start point, use ORB at the branch end point;
As the ANB instruction, an ORB instruction is an independent instruction which is not
associated with any soft component.
There are no limits for parallel circuits’quantity when using ORB for every circuit.
Recommended good programming method:
Non-preferred programming method:
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