2-4
2.2 How to Read Instruction Tables
5) Details of executing conditions of each instruction are as follows:
6) Indicates the pages on which the instructions are explained.
Symbol
Executing condition
No symbol
Indicates a non-conditional executing instruction that is always executed disregarding the ON/OFF status of
the precondition of the instruction.
When the precondition is OFF, the instruction performs ‘OFF’ processing.
Indicates an 'executed while ON' type instruction that is executed only while the precondition is ON.
When the precondition is OFF, the instruction is not executed and does not perform processing.
Indicates an 'executed once at ON' type instruction that is executed only at the rising pulse (OFF to ON) of
the precondition of the instruction. The instruction is not executed afterwards even when the condition is ON
and thus does not perform processing.
Indicates an 'executed while OFF' type instruction that is executed only while the precondition is OFF.
When the precondition is ON, the instruction is not executed and does not perform processing.
Indicates an 'executed once at OFF' type instruction that is executed only at the falling pulse (ON to OFF) of
the precondition of the instruction. The instruction is not executed afterwards even when the condition is OFF
and thus does not perform processing.
Summary of Contents for MELSEC Q Series
Page 1: ...Structured Programming Manual Mitsubishi Programmable Controller QCPU Common Instructions ...
Page 2: ......
Page 14: ...A 12 MEMO ...
Page 340: ...6 178 MEMO MTR ...
Page 708: ...7 368 MEMO ...
Page 776: ...8 68 MEMO ...
Page 796: ...9 20 MEMO ...
Page 804: ...App 8 MEMO ...
Page 812: ...Index 8 MEMO ...
Page 815: ......