3 storage of error code – Sharp JW-21MN User Manual
Page 87
12-6
12-3 Storage of error code
When an error occurs in the JW-21MN, it stores the occurred error’s code to system memory #160,
#170 and error history storage register of each station's PC.
- 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.
01
ROM error, upper CPU
02
RAM error, upper CPU
03
2 port RAM error against PC, upper CPU
04
2 port RAM error against
communication CPU, upper CPU
11
ROM error, communication CPU
12
RAM error, communication CPU
18
Communication LSI error, communication CPU
1F
No response
20
More than one token detected
21
Doubled address detected
22
Fault of sending section
23
Token does not return within the rated interval
2A
Over flow of receiving buffer.
2B
Flame length error
30
EEPROM error
60
Switch setting error
6E
BCC error
6F
Parameter setting error
C1
Communication error
Error code stored to system memory
#170
#160
53
(H)
Cause
Measure
Replace the JW-21MN
Replace the JW-21MN
Check the communication cable
and slave module
Error
code
(HEX)
Check the communication cable
Check the parameter setting
Check the switch setting
Replace the JW-21MN
FF
- After converting into octal, the lower two digits
represent the slave station number of the current
error. (Ex. C1
(H)
= 301
(8)
= slave station 01)
- Check the communication
cable
- Check for doubled allocation
of station number
- Replace the JW-21MN
Check the parameter setting
Check the communication cable
to
1F
(H)
20
(H)
21
(H)
22
(H)
23
(H)
2A
(H)
2B
(H)
30
(H)
60
(H)
6E
(H)
6F
(H)
C1
(H)
to
FF
(H)