Remarks

The error code stored in the system memory #170 is shifted to #170 to #177 one after the other as new errors occur. Thus, the system memory can store up to 8 errors. When the PC is operating by RAM, these error codes do not disappear even after turning OFF the power.

The contents of system memory #170 to #177 are kept storing after the JW-20CM recovers from the

error.

#177

#176

#175

#174

#173

#172

#171

#170

6E Occurrence of BCC error

Disappear

6E 6F

Occurrence of parameter setting error

When any of errors “01(H)” to “18(H)” occurs among the error codes listed on the previous page, the JW- 20CM stores error code “53(H)” (optional error) in the system memory #160. It does not store any error code in system memory #170.

In the case of an option error "53," when you monitor system memory #050, the bit of error option module switches ON. When more than 1 bit is error, these bits switch ON. The each ON bit becomes OFF by recovering from the error condition. But the last ON bit does not become OFF even if the error condition recovers.

7

6

5

4

3

2

1

0

#050

8

Port 6 error

Port 4 error

Port 2 error

Port 7 error

Port 5 error

Port 3 error

The option slot port numbers are assigned in the order 2, 3, 4, 5, 6, 7, and so on, starting from the position closet to the control module.

(Ex.: JW-13BU)

Control module

 

 

② ③ ④ ⑤ ⑥ ⑦

 

 

Port number

 

 

 

 

 

 

 

 

8·53