Sharp JW-21MN manual 12-8, Error history

(4)Error history

When the JW-21MN has errors, it stores them in an error history register. The storage area is specified using the module No. switch setting value.

Module No. switch		Error history storage register
setting value		JW20/JW20H	JW30H *1
	0	E1400 to E1577	E7400 to E7577
	1	E1200 to E1377	E7200 to E7377	*1: When the JW30H is used,
	2	E1000 to E1177	E7000 to E7177
				system memory should be set
	3	E0600 to E0777	E6600 to E6777
				to #210 = 002(8).
	4	E0400 to E0577	E6400 to E6577	*2: Setting the module No. switch
				to "5" or "6" is only valid when
5	*2	E0200 to E0377	E6200 to E6377
				the model switch on the JW-
6	*2	E0000 to E0177	E6000 to E6177
				21MN is set to "2."
7 to 9		Prohibited setting

The storage area for the error history (128 bytes) is divided into 8 sections (16 bytes each). The JW-21MN stores up to 8 errors, in the order they occurred. If a ninth error occurs, the oldest error data will be deleted.

Register address *3

area	E1200
	E1220
storage
	E1240
	E1260
history	E1300
	E1340
Error	E1320
	E1377
	E1360

	1st error		2nd error		9th error
0 0		1st		8th		*3: The register address on the left is correct when the
0 0		0 0		7th
0 0		0 0		6th		JW20H is used and the Module No. switch is set to
0 0		0 0		5th		"1."
0 0		0 0		4th
0 0		0 0		3th
0 0		0 0		2nd

1st error is deleted.

12

Details of the data for each error (16 bytes) are as follows.

Address (*4)		Details			Remarks
n+0 (E1200)		Second		- When a JW-21CU/31CUH/31CUH1 is
n+1 (E1201)		Minute
				used for the control module of a
n+2 (E1202)		Hour	Date and time	JW20/20H/30H, ignore data from bytes 1
n+3 (E1203)		Date		to 7.
			error occurred
				(Since the JW-21CU/31CUH/31CUH1 do
n+4 (E1204)		Month
				not have a clock function, they cannot
n+5 (E1205)		Year
				store this data correctly.)
n+6 (E1206)	Day of week
n+7 (E1207)	Error code		JW-21MN	- Stores the error code (value of #170).
			error code	- See page 12-6.
n+8 (E1210)
n+9 (E1211)
				- When the same error occurs, the JW-
				21MN will count up to 377(8). From error
n+10 (E1212)	Number of errors		000 to 377(8)	400(8), the number of errors will stay at
	that have occurred			377(8). (The date and time the error
				occurred is the date and time the error
				occurred for the first time.)
n+11 (E1213)
to
n+15 (E1217)

*4: When the top address is "E1200."

12-8