Chapter 6 FBD Block Diagram Programming 145
Logic Block Instructions
Logic blocks display in FBD:
Press the button:
→ Move cursor: input terminals ① → Logic block number ③ → display next
connected block or coil
← Move cursor: Logic block number ③ → input terminals ① →
Logic/Function display (input terminal is block)
↑ ↓
Move cursor up or down (when multiple input terminals)
※ Logic Block include: AND, AND EDGE, NAND, NAND EDGE, OR, NOR, XOR, NOT, RS, PULSE,
BOOLEAN.
AND Logic Diagram
FBD:
LADDER:
=
I01 And I02 And I03
Note: The input terminal is NOP which is equivalent to ‘‘Hi”;
The B output ON when all input terminals status are ON;
AND (EDGE) Logic Diagram
FBD:
LADDER:
=
I01 And I02 And I03 And D
Note: The input terminal is NOP which is equivalent to ‘‘Hi”;
The B output ON a scan cycle time when all input terminals status are ON;
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