Omron FQM1-CM001 Work Area W000 to W255 W000.00 to W255.15, 4,096 Bits, Temporary Relay Area TR

I/O Memory Appendix B

Immediate Refresh

I/O can also be refreshed on the timing specified by the user using immediate refreshing. Any I/O refreshed using an immediate refresh will also be refreshed for the END refresh.

Refreshing Using the IORF(097) Instruction

Inputs	When IORF(097) is executed for CIO
IORF	0000 and CIO 0001, the status of
0000
	input terminals are input to input bits
0001
	and the status of output bits is output
	to output terminals.
	Built-in	Module
	inpuits
SW0		The status of
SW16		CIO 0000 is input
SW1		from the external
SW17		devices.
SW15
SW31
	Status read just prior to execution
	of IORF(097).
Outputs	When IORF(097) is executed for CIO
IORF	0000 and CIO 0001, the status of
0000
	input terminals are input to input bits
0001
	and the status of output bits is output
	to output terminals.
Module	CIO 0001	Built-in
Correspond
		outputs
		Actuators
	CIO 0101	The status of
		CIO 0001 is output
		to the external
	IORF(097)	devices.
	executed

Work Area: W000 to W255 (W000.00 to W255.15), 4,096 Bits

Words in the Work Area can be used only in the program; they cannot be used for I/O exchange with external I/O terminals. Use this area for work words and bits before any other words in the CIO Area.

Auxiliary Area: A000 to A649 (A000.00 to A649.15)

The Auxiliary Area contains flags (controlled by the system) and control bits (controlled by the user) used to monitor and control FQM1 operation. The functions of these flags and bits are predetermined and include error flags from self-diagnosis, initial settings, operation controls, and operation status monitor data.

The bits and words in this area can be read and written from the program or from the CX-Programmer.

The bits in this area cannot be force-set or force-reset continuously.;

The CX-Programmer read/write operations include setting and resetting bits online (not forced), changing present values from address monitor displays, and transfer operations to the FQM1 after editing FQM1 data tables on the CX-Programmer. Refer to the CX-Programmer Operation Manual (Cat. No. W437) for details.

Temporary Relay Area (TR)

The TR Area contains bits that record the ON/OFF input condition status at program branches. The TR bits are used with mnemonics only.

•TR0 to TR15 can be used in any order and any number of times.

•TR bits can be used only in OUT and LD instructions.

OUT instructions (OUT TR0 to OUT TR15) are used to store the input conditions at branch points. LD instructions (LD TR0 to LD TR15) are used to read the input conditions previously stored at branch points.

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