Omron CJ - REFERENCE MANUAL 02-2010 Reference Manual page 43

CS/CJ/NSJ Series Instructions Reference Manual (W474)
■
Time Chart
Bit A
Bit A
Bit B
■
Downwardly Differentiated Instructions (Instruction Preceded by %)
Output Instructions:
The instruction is executed only during the cycle in which the execution condi-
tion turned OFF (ON
(%) Downwardly
differentiated
instruction
■ Time Chart
Bit A
Bit A
Operation
of SET
Input Instructions (Logical Starts and Intermediate Instructions):
The instruction reads bit status, makes comparisons, tests bits, or perform
other types of processing every cycle and will output the execution condition
(power flow) when results switch from ON to OFF.
The execution condition will turn OFF the next cycle.
Downwardly differentiated input instruction
■
Time Chart
Bit A
Bit A
Bit B
Note The downward differentiation variation (indicated by "%") cannot be
used with as many instructions as the upward differentiation varia-
tion. It can be used only with the LD, AND, OR, SET, and RSET in-
struction. To use downward differentiation with any other instructions,
combine the instruction with the DIFD(014) or DOWN(522) instruc-
tion. NOT can be added to instruction only for the CS1-H, CJ1-H,
CJ1M, and CS1D CPU Units
1. Basic Understanding of Instructions
Bit B
OFF) and is not executed in the following cycles.
1.02
Example
Executes the SET instruction once
when CIO 1.02 goes ON to OFF.
Example
1.03
Will turn ON when the CIO 1.03 switches from
ON OFF and will turn OFF after one cycle.
Bit B
1
[ %SET ]
7