Mitsubishi Electronics manual 171

11 TROUBLESHOOTING

MELSEC-Q

Special Relay List (Continued)

ACPU	Special	Special					Applicable
Special	Relay after	Relay for	Name		Meaning	Details
							CPU
Relay	Conversion	Modification
				OFF: Other than when P, I set		• Provides P, I set request after transfer of the other
M9061	SM1061		Sub program 3 P,			program (for example subprogram when main program is
			I set request		being requested	being run) is complete during run. Automatically switched
				ON	: P, I set being requested
						off when P, I setting is complete.
			Divided	OFF: Divided processing not		• Turned on when canvas screen transfer to
			processing
M9065	SM1065	SM711			underway	AD57(S1)/AD58 is done by divided processing, and
			execution
				ON	: During divided processing	turned off at completion of divided processing.	QnA
			detection
			Divided	OFF: Batch processing		• Turned on when canvas screen transfer to
M9066	SM1066	SM712	processing
				ON	: Divided processing	AD57(S1)/AD58 is done by divided processing.
			request flag
						• Turned ON to shorten the search time in the
M9070	SM1070		A8UPU/A8PUJre	OFF: Read time not shortened		A8UPU/A8PUJ.
			quired search	ON : Read time shortened		(In this case, the scan time is extended by 10 %.)
			time			The A8UPU/A8PUJ cannot be used in the
						QCPU/QnACPU special relays.
				OFF: Empty spaces in
			Communication		communication request	• Indication of communication enable/disable to remote
			request		registration area
M9081	SM1081	SM714				terminal modules connected to the MELSECNET/MINI	QnA
			registration area	ON	: No empty spaces in
						master, A2C or A52G.
			BUSY signal		communication request
					registration area
						• It is set whether the error checks below are performed or
						not when the END instruction is processed (to set the
M9084	SM1084		Error check	OFF: Error check executed		END instruction processing time).
				ON	: No error check	• Check for breakage of fuse.
						• Collation check of I/O unit
						• Check of battery
M9091	SM1091		Instruction error	OFF: No error		• Set when an operation error detail factor is stored at
			flag	ON	: Error	SD1091, and remains set after normal status is restored.
						• After the head address of the required I/O module is set
						to SD251, switching SM251 on allows the I/O module to
						be changed in online mode. (One module is only allowed
						to be changed by one setting.)
M9094	SM1094	SM251	I/O change flag	OFF: Replacement		• To be switched on in the program or peripheral device	QnA
				ON : No replacement		test mode to change the module during CPU RUN. To be
						switched on in peripheral device test mode to change the
						module during CPU STOP.
						• RUN/STOP mode must not be changed until I/O module
						change is complete.
M9100	SM1100	SM320	Presence/absenc	OFF: SFC programs not used		• Turned on if the SFC program is registered, and turned
			e of SFC	ON	: SFC programs used	off if it is not.
			program
						• Should be turned on by the program if the SFC program
M9101	SM1101	SM321	Start/stop SFC	OFF: SFC programs stop		is to be started. If turned off, operation output of the
			program	ON	: SFC programs start	execution step is turned off and the SFC program is
						stopped.
						• Selects the starting step when the SFC program is
						restarted using SM322.
						ON: All execution conditions when the SFC program
						stopped are cleared, and the program is started
			SFC program	OFF: Initial Start		with the initial step of block 0.
M9102	SM1102	SM322				OFF: Started with the step of the block being executed
			start status	ON	: Continue
						when the program stopped.
						• Once turned on, the program is latched in the system and
						remains on even if the power is turned off.
						Should be turned off by the sequence program when
						turning on the power, or when starting with the initial step
						of block 0.
				OFF: Continuous transition not		• Selects consecutive or step-by-step transfer of steps of
			Presence/absenc			which transfer conditions are established when all of the
M9103	SM1103	SM323	e of continuous		effective	transfer conditions of consecutive steps are established.
				ON	: Continuous transition
			transition			ON: Consecutive transfer is executed.
					effective
						OFF: One step per one scan is transferred.

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