(Error code)

 

LED name

 

Error

Cause

Measure

S7 6

5

4

3

2

1 S0

code

(HEX)

 

 

 

 

 

 

 

 

 

 

 

○ ○ ○ ○ ○ ○ ● 01(H) ROM error, upper CPU

○ ○ ○ ○ ○ ● ○ 02(H) RAM error, upper CPU

○ ○ ○ ○ ○ ○ ● ● 03(H) 2 port RAM error against PC, upper CPU Replace the JW-20RS

○ ○ ○ ○ ● ○ ○ 04(H) 2 port RAM error against communication CPU, upper CPU

○ ○ ● ○ ○ ○ ● 11(H) ROM error, communication CPU

○ ○ ○ ● ○ ○ ● ● 13(H) RAM error, communication CPU

• Check the communica-

○ ○ ○ ● ● ○ ○ ○ 18(H) Communication LSI error, communication CPU

tion cable

 

• Check for doubled allocation

○ ○ ● ○ ○ ○ ○ ○ 20(H) More than one token detected

of slave station number

○ ○ ● ○ ○ ○ ○ ● 21(H) Doubled address detected

• Replace the JW-20RS

○ ○ ● ○ ○ ○ ● ○ 22(H) Fault of sending section

Replace the JW-20RS

 

 

○ ○ ● ○ ○ ○ ● ● 23(H) Token does not return within the rated interval

• Check the communication cable

• Replace the JW-20RS

 

Overflow of receiving buffer.

○ ● ○ ● ○ ● ○ 2A(H) Occurs when the upper CPU processing is delayed. Check the communication

○ ● ○ ● ○ ● ● 2B(H) Flame length error • Occurs because of a media execution cable

 

○ ○ ● ○ ● ● ○ ○ 2C(H) Media error

error or noise from outside.

 

 

 

 

○ ○ ● ○ ● ● ● ○ 2E(H)

Synchronization between master and slave

• Reinput the power

 

station is deviated

 

• Decrease load of slave station

 

 

 

 

 

 

 

 

 

 

○ ○ ● ● ○ ○ ○ ○ 30(H)

EEPROM error

 

• Check the communication cable

 

 

• Replace the JW-20RS

 

 

 

 

 

 

 

 

 

 

 

 

● ○ ○ ● ● ● ● ○ 90(H)

I/O bus error

 

• Check I/O module,

 

● ○ ○ ○ ○ ○ ○ ● 91(H)

I/O signal error

 

 

 

option cables

 

 

 

 

 

8

 

● ○ ○ ● ○ ○ ● ○ 92(H)

Mismatch number of I/O points

 

 

 

● ○ ○ ● ○ ○ ● ● 93(H)

Interrupted data from master station

Check the communication

 

 

 

 

 

cable and master module

 

 

 

 

 

 

● ○ ○ ● ○ ● ○ ○ 94(H)

Defected power failure at I/O processing

Check power supply

 

 

 

 

 

 

 

 

 

 

Check master station PC,

 

● ○ ○ ● ○ ● ○ ● 95(H)

Master station PC error

master module, or

 

 

communication cable

 

 

 

 

 

 

 

 

● ○ ○ ● ● ● ● ○ 9E(H)

BCC error

 

Check parameter contents

 

 

 

 

 

● ○ ○ ● ● ● ● ● 9F(H)

Parameter setting error

 

 

 

 

● : ON, ○ : OFF

Remarks

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.

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