Mitsubishi Electronics Q68ADV, Q68ADI, Q64AD user manual Error Code List

8 TROUBLESHOOTING

MELSEC-Q

8 TROUBLESHOOTING

The following section explains the types of errors that may occur when the A/D converter module is used, and how to troubleshoot such errors.

8.1 Error Code List

If an error occurs in the A/D converter module while writing to or reading data from the

PLC CPU, the applicable error code is written to buffer memory address 19 (Un\G19).

Table 8.1 Error code list

	Error code	Error description	Processing
	(decimal)
		The input range is set an illegal value using the	Reset to the correct parameter with GX Developer
	10	intelligent function module switch in GX Developer.
			parameter setting. (See Section 4.5.)
		indicates the incorrectly specified channel number.
			Turn the power OFF and ON again. If the error
	111	Module error at startup.	occurs again, the module may be malfunctioning.
			Contact the nearest distributor or branch office with
			the description of the problem.
	161 1	The G.OGSTOR instruction was executed in the	Do not execute the G.OGSTOR instruction in the
		offset/gain setting mode.	offset/gain setting mode.
		• The G.OGSTOR instruction was executed	• Execute the G.OGSTOR instruction only once for
	162	consecutively.	one module.
		• At the time of offset/gain setting, a set value was	• At the time of offset/gain setting, write a set value
		written to the E2PROM 26 or more times.	only once at one time.
		The G.OGSTOR instruction was executed for the	Execute the G.OGLOAD and G.OGSTOR
	163	model that differs from the model for which the
			instructions for the same model.
		G.OGLOAD instruction had been executed.
		The average time setting value for buffer memory
	20	addresses 1 to 8 (Un\G1 to Un\G8) is outside the	Reset the average time setting to a value within the
		range of 2 to 5000 ms. indicates the incorrectly	range of 2 to 5000 ms.
		specified channel number.
		The average number of times setting value for buffer
	30	memory addresses 1 to 8 (Un\G1 to Un\G8) is	Reset the average number of times setting value to
		outside the range of 4 to 62500 times. indicates	within the range of 4 to 62500 times.
8
		the incorrectly specified channel number.
		The offset value is equal to or greater than the gain
	40	value at the time of user range setting or user range	Reset so that the offset value becomes smaller than
		restoration.	the gain value.
		indicates the error causing channel number.
		The offset/gain channels were set at the same time	Reset the contents of buffer memory addresses 22
	500	during offset and gain value settings, or both were
			and 23 (Un\G22 and Un\G23).
		set to 0.

1: Not written to the buffer memory address 19 (Un\G19). Written to the completion status area (S)+1 of the G.OGSTOR instruction.

POINT

(1)If more than one error occurs, the error code first detected by the A/D converter module is stored. No other error codes will be stored.

(2)The error can be cleared by setting the error clear request (YF) to "ON".

(3)The error is cleared at the time of mode switching.

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