Remarks – Sharp JW-20CM User Manual

Page 87

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8

·

49

Replace the JW-20RS

• Check the communication cable

• Replace the JW-20RS

Check the communication

cable

• Reinput the power

• Decrease load of slave station

• Check the communication cable

• Replace the JW-20RS

• Check I/O module,

option cables

Remarks

ROM error, upper CPU

RAM error, upper CPU

2 port RAM error against PC, upper CPU

2 port RAM error against communication CPU, upper CPU

ROM error, communication CPU

RAM error, communication CPU

Communication LSI error, communication CPU

More than one token detected

Doubled address detected

Fault of sending section

Token does not return within the rated interval

Overflow of receiving buffer.

Occurs when the upper CPU processing is delayed.

Flame length error

Media error

Synchronization between master and slave

station is deviated

EEPROM error

I/O bus error

I/O signal error

Mismatch number of I/O points

Interrupted data from master station

Defected power failure at I/O processing

Master station PC error

BCC error

Parameter setting error

S7 6 5 4 3 2 1

Measure

Cause

Replace the JW-20RS

S0

01

(H)

02

(H)

03

(H)

04

(H)

11

(H)

13

(H)

18

(H)

20

(H)

21

(H)

22

(H)

23

(H)

2A

(H)

2B

(H)

2C

(H)

2E

(H)

30

(H)

90

(H)

91

(H)

92

(H)

93

(H)

94

(H)

95

(H)

9E

(H)

9F

(H)

Error

code

(HEX)

Check the communication

cable and master module

Check power supply

Check master station PC,

master module, or

communication cable

Check parameter contents

LED name

• Check the communica-

tion cable

• Check for doubled allocation

of slave station number

• Replace the JW-20RS

• Occurs because of a media execution

error or noise from outside.

ON,

OFF

• Error codes “23” and “2A

(H)

” may occur when applying power. This is not an error.

• 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)

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