Mitsubishi Q01CPU User Manual page 681

12
TROUBLESHOOTING
Number Name Meaning
Reason(s) for
Reason(s) for
system
SD1589 system switching
switching failure
failure No.
conditions
Switch request Request source
network No. network No.
Network module
Network module
SD1590
head address,
head address,
which requested
which requested
system
system switching
switching
Memory copy
Memory copy
SD1595 target I/O
target I/O number
number
Memory copy Memory copy
SD1596
status status
Table12.60 Special register
Explanation
• Stores the reason(s) for system switching failure.
0: System switching normal (default)
1: Tracking cable is not connected , tracking cable error, FPGA circuit
failure.
2: H/W failure, power-OFF, Reset, WDT error on the standby system
3: H/W failure, power-OFF, Reset, WDT error on the Control system
4: Tracking data transfer initialization
5: Communication timeout
6: Serious error(except WDT error) on the Standby system
7: There is difference between both systems
(detected as Backup mode only)
8: During memory copy from control system to standby system
9: During online program change
10: During detection of intelligent function module failure on the standby
system
11: System switching being executed
• Resets to "0" when host system is powered on.
• Resets to "0" once system has been switched successfully.
• Stores the request source at work No. when the SM1590 is turned on.
• Stores head address of network module which a system switch request
was initiated.
• Turns off automatically by system, after network error is reset by user.
b15 to b11 to b1 b0
0
SD1590 0/1 0/1 0
Module 0:
Module 1:
Module11:
• Please refer to SD1690 which stores the corresponding head address of
network module on other system.
• Stores the memory copy target I/O No.(Standby system CPU module:
3D1H) of before SM1595 is turned from OFF to ON.
• Stores the execution result of Memory copy function.
0 : Memory copy successfully completed
4241 : Standby system power supply off
H
4242 : Tracking cable is disconnected or is damaged
H
4247 : Memory copy function is being executed
H
4248 : Unsupported memory copy destination I/O Number
H
Set by
(When Set)
S(when system
is switched)
S (Error)
Each bit
0:OFF
1:ON
CPU module is invalid
S (Error/Status
as it is 2-slot model.
change)
Module on the right
side of the CPU module
to
Module at the
rightmost end of the
12-slot base (Q312B)
U
S (Status
change)
12.8 Special Register List
Corres-
ponding
Corresponding
ACPU
CPU
D9
QnPRH
New Q4AR
New
QnPRH
New
New
12
- 357
9
10
11
12