Sharp JW-21MN manual Storage of error code, 12-6

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12-3 Storage of error code

When an error occurs in the JW-21MN, it stores the occurred errorÕs code to system memory #160, #170 and error history storage register of each station's PC.

Error	Cause	Error code stored to system memory						Measure
code
(HEX)		#160		#170
01	ROM error, upper CPU
02	RAM error, upper CPU
						Replace the JW-21MN
03	2 port RAM error against PC, upper CPU
04	2 port RAM error against		53(H)
	communication CPU, upper CPU
							- Check the communication
11	ROM error, communication CPU
							cable
12	RAM error, communication CPU
							- Check for doubled allocation
18	Communication LSI error, communication CPU
							of station number
1F	No response				1F (H)		- Replace the JW-21MN
20	More than one token detected				20 (H)	Check the parameter setting
21	Doubled address detected				21 (H)
22	Fault of sending section				22 (H)	Replace the JW-21MN
23	Token does not return within the rated interval				23 (H)	Check the communication cable
2A	Over flow of receiving buffer.				2A (H)
2B	Flame length error				2B (H)	Check the communication cable
30	EEPROM error				30 (H)	Replace the JW-21MN
60	Switch setting error				60 (H)	Check the switch setting
6E	BCC error				6E (H)	Check the parameter setting
6F	Parameter setting error				6F (H)
C1	Communication error				C1 (H)	Check the communication cable
to	- After converting into octal, the lower two digits				to
						and slave module
FF	represent the slave station number of the current				FF (H)
	error. (Ex. C1(H) = 301(8)= slave station 01)

-In some cases, error code 23(H) or 2A(H) is stored when inputting power. This is not an error.

-Error code 60(H), 6E(H), C1 to FF(H) are special error codes unique to the JW-21MN.

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