Input-Differentiated Instructions - Omron CP1E CPU UNIT SOFTWARE User Manual

Input-differentiated Instructions

Upwardly Differentiated Instructions (Instructions Preceded by @)
• Output Instructions
The instruction is executed only during the cycle in which the execution condition changes from
OFF to ON.
The instruction is not executed in the following cycle.
• Input Instructions (Logical Starts and Intermediate Instructions)
The instruction reads bit status, makes comparisons, tests bits, or performs other types of pro-
cessing every cycle and will output an ON execution condition (power flow) when the result
changes from OFF to ON.
The execution condition will turn OFF the next cycle.
Upwardly differentiated instruction
Downwardly Differentiated Instructions (Instruction Preceded by %)
• Output Instructions
The instruction is executed only during the cycle in which the execution condition changes from
ON to OFF.
The instruction is not executed in the following cycle.
• Input Instructions (Logical Starts and Intermediate Instructions)
The instruction reads bit status, makes comparisons, tests bits, or performs other types of pro-
cessing every cycle and will output an ON execution condition (power flow) when the result
changes from ON to OFF.
The execution condition will turn OFF the next cycle.
Downwardly differentiated instruction
CP1E CPU Unit Software User's Manual(W480)
Example:
@ Upwardly
differentiated
instruction
Example:
Example:
% Downwardly
differentiated
instruction
Example:
4 Understanding Programming
1.02
@MOV
Executes the MOV instruction once
when CIO 1.02 turns ON.
1.03
ON execution condition created for one
cycle when CIO 1.03 turns ON.
1.02
%SET
Executes the SET instruction once
when CIO 1.02 turns OFF.
1.03
ON execution condition created for one cycle
when CIO 1.03 turns ON.
4
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