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3. Instructions

CS/CJ/NSJ Series Instructions Reference Manual (W474)

Data Movement Instructions

MOVR/MOVRW

Function

z MOVR

z MOVRW

Precautions

z MOVR

• The internal I/O memory address (excluding the timer/counter PV) is set in the index register (IR0 to

15) using this instruction.

• If S is specified using a regular I/O memory address (address based on area type), this will be

automatically converted to an internal I/O memory address and stored in D.

• If a timer or counter is specified in S, MOVR(560) will write the PLC memory address of the

timer/counter Completion Flag in D.

• MOVR(560) cannot set the PLC memory addresses of timer/counter PVs. Use MOVRW(561) to set

the PLC memory addresses of timer/counter PVs.

• The contents of an index register in an interrupt task is not predictable until it is set. Be sure to set a

• Any changes to the contents of an IR or DR made in an interrupt task will not affect the contents of

the register in a cyclic task.

z MOVRW

• MOVRW(561) will set the PLC memory address of the timer or counter's PV in D.

• Use MOVRW(561) to write the PLC memory address of the timer/counter PV in D.

• MOVRW(561) cannot set the PLC memory addresses of data area words, bits, or timer/counter

Completion Flags. Use MOVR(560) to set these PLC memory addresses.

MOVR(560) finds the PLC memory address

(absolute address) of S and writes that

address in D (an Index Register).

MOVRW(561) finds the PLC memory address

for the PV of the timer or counter specified in S

and writes that address in D (an Index

Internal I/O memory address of S

Index Register

Internal I/O memory address of S

Timer/counter PV only

Index Register

Omron CJ - INSTRUCTIONS User Manual

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