Mitsubishi Electric QJ71MB91 User Manual page 322

11
TROUBLESHOOTING
(H/W SW Information)
The intelligent function module switch status of the QJ71MB91 is displayed.
The displayed values correspond to those in the intelligent function module switch setting
status (address:0C00
(4) Input signals (X)
(5) Buffer memory
11
- 16 11.2 Checking QJ71MB91 Status
to 0C04
H
Status signal
No.
name
1 CH1 MODE Switch 1: CH1 operation mode setting status
2 1 CONFIG Switch 2: CH1 transmission setting status
3 CH2 MODE Switch 3: CH2 operation mode setting status
4 2 CONFIG Switch 4: CH2 transmission setting status
5 ST NO. Switch 5: CH1/CH2 Station No. setting status
The status of the QJ71MB91 can be confirmed by the input signals shown below.
Input
signal
X1B CH common/CH1 error
X1C CH2 error
X1F Watch dog timer error
CH1 Automatic communication parameter setting,
X5
error completed
CH2 Automatic communication parameter setting,
XD
error completed
X7 CH1 Automatic communication error status
XF CH2 Automatic communication error status
MODBUS device assignment parameter setting,
X9
error completed
The QJ71MB91 status can be confirmed with the buffer memory.
• Detailed LED status (
• Error confirmation (
) of the buffer memory.
H
Table11.7 Display of H/W SW information
Description
Table11.8 Input signals for status check
Description
This section (3)(b))
Section 11.4)
Reference
Section 6.6
Error type Reference
General
H / W error
Section 11.1
Automatic
communication
function
MODBUS device
assignment function