IEC FBD Bit Logic Instructions

Bit Logic

2 Input AND Box

2 Input OR Box

Positive Transition

Negative Transition

Output

Output Immediate

Set Immediate (N bits)

Reset Immediate (N bits)

Set (1 bit)

Reset (1 bit)

Set Dominant Bistable

Reset Dominant Bistable

Note:

A red diamond by each SIMATIC style instruction identifies an extension to the standard IEC 1131-3 instruction set.