Sharp JW-20CM User Manual page 85

(Error code)
LED name
S7 6 5 4 3 2
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○
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● ○ ● ● ● ●
● ○ ● ● ● ●
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to
● ● ● ● ● ●
● : ON, ○ : OFF
Remarks
• Error codes "23" and "2A
• To check the communication cable, remove both connectors and short the connector terminals
at one end. Then measure the conductivity using a tester.
• Check the parameter and switch settings for all stations. If the settings are correct, replace
the JW-20CM or JW-20RS.
Error
code
1 S0
(HEX)
●
○ ROM error, upper CPU
01
(H)
○ RAM error, upper CPU
● 02
(H)
●
● 2 port RAM error against PC, upper CPU
03
(H)
○ ○ 2 port RAM error against communication CPU, upper CPU
04
(H)
● ROM error, communication CPU
○
11
(H)
○
● RAM error, communication CPU
12
(H)
Communication LSI error, communication CPU
○ ○
18
(H)
No response, communication CPU
●
● 1F
(H)
○ More than one token detected
○
20
(H)
Doubled address detected
○ ●
21
(H)
Fault of sending section
○
●
22
(H)
● Token does not return within the rated interval
●
23
(H)
Overflow of receiving buffer.
○
●
2A
(H)
Occurs when the upper CPU processing is delayed.
● Flame length error
●
2B
(H)
○ Media error
○
2C
(H)
EEPROM error
○ ○
30
(H)
○ BCC error
●
BE
(H)
● Parameter setting error
●
BF
(H)
Communication error
○ ●
※
C1
(H)
• After converting into octal, the lower two digits
to
represent the slave station number of the current
●
●
※
FF error. (Ex. 01 = 301
(H)
(H)
" may occur when applying power. This is not an error.
(H)
8 47
·
Cause
Replace the JW-20CM
• Check the communica-
tion cable
• Check for doubled allocation
of slave station number
• Replace the JW-20CM
Check the parameter
setting and switch setting.
• Replace the JW-20CM
• Check the communication cable
Check the communication
• Occurs because of a media execution
cable
error or noise from outside.
Check the communication cable
Replace the JW-20CM
Check the parameter contents.
Check the communication
cable and slave module
= slave station 01)
(8)
Measure
8