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High-speed Counter/Pulse Output Instructions Section 3-21
3-21-9 ORIGIN SEARCH: ORG(889) (CJ1M-CPU21/22/23 Only)
Purpose ORG(889) performs an origin search or origin return operation.
This instruction is supported by CJ1M-CPU21/22/23 CPU Units only.
â– Origin Search
Pulses are output using the specified method to actually drive the motor and
establish the origin based on origin proximity input and origin input signals.
â– Origin Return
The positioning system is returned to the pre-established origin.
Ladder Symbol
Variations
Applicable Program Areas
Operands P: Port Specifier
The port specifier specifies the port where the pulses will be output.
C: Control Data
The value of C determines the origin search method.
Operand Specifications
ORG(889)
P
C
P: Port specifie
C: Control data
Variations Executed Each Cycle for ON Condition ORG(889)
Executed Once for Upward Differentiation @ORG(889)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
PPort
0000 hex Pulse output 0
0001 hex Pulse output 1
03478
111215
C
Always 0 hex.
Always 0 hex.
Pulse output method (See note.)
0 hex: CW/CCW
1 hex: Pulse + direction
Mode
0 hex: Origin search
1 hex: Origin return
Note: Use the same pulse output method when using both pulse outputs 0 and 1.
Area P C
CIO Area --- ---
Work Area --- ---
Holding Bit Area --- ---
Auxiliary Bit Area --- ---
Timer Area --- ---
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