1. Basic Understanding of Instructions
6
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Input-differentiated Instructions
■ Upwardly Differentiated Instructions (Instruction Preceded by @)
Output Instructions:
The instruction is executed only during the cycle in which the execution condi-
tion turned ON (OFF → ON) and are not executed in the following cycles.
The instruction is executed only during the cycle in which the execution condi-
tion turned ON (OFF → ON) and are not executed in the following cycles.
■ Time Chart
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 an ON execution condi-
tion (power flow) when results switch from OFF to ON. The execution condi-
tion will turn OFF the next cycle. The instruction reads bit status, makes
comparisons, tests bits, or perform other types of processing every cycle and
will output an ON execution condition (power flow) when results switch from
OFF to ON. The execution condition will turn OFF the next cycle.
■ Time Chart
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 an OFF execution condi-
tion (power flow stops) when results switch from OFF to ON. The execution
condition will turn ON the next cycle.
1.02
Example
@MOV
Executes the MOV instruction once when
CIO 1.02 goes OFF → ON.
(@) Upwardly differ-
entiated instruction
Bit A
Bit A
Operation
of SET
1.03
Example
ON execution condition created for one
cycle only when CIO 1.03 goes from
OFF to ON.
Upwardly differentiated
input instruction
Bit A
Bit A
Bit B
Bit B
1.03
OFF execution condition created for one
cycle only when CIO 1.03 goes from
OFF to ON.
Example
Upwardly differentiated
input instruction
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