Mitsubishi Q02HCPU - Page 669

APPENDICES
Appendix 2 Special Register List
App
- 74
9
Device Explanation
10
CPU Module Processing Time
11
Procedure for Writing Program to CPU Module
Appendices
Index
TableApp.33 Special register
Number Name Meaning Explanation
Set by
(When set)
Corres-
ponding
ACPU
D9
Corresponding CPU
SD1589
Reason(s) for
system
switching failure
conditions
Reason(s) for
system switching
failure No.
• 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.
S(when system
is switched)
QnPRH
SD1590
Switch request
network No.
Request origin
network No.
• Stores the request origin at work No. when the SM1590 is turned on.
S (Error
occurrence)
New Q4AR
Network module
head address,
which requested
system
switching
Network module
head address,
which requested
system switching
• 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.
• Please refer to SD1690 which stores the corresponding head address of
network module on other system.
S (Error
occurrence/Sta-
tus change)
New
QnPRH
SD1595
Memory copy
target I/O
Number
Memory copy
target I/O Number
• Stores I/O No.(Standby system CPU module: 3D1
H
) of before SM1595
is set to on.
UNew
SD1596
Memory copy
status
Memory copy
status
• Stores the execution result of Memory copy function.
0 : Memory copy successfully completed
4241
H
: Standby system power supply off
4242
H
: Tracking cable is disconnected or is damaged
4247
H
: Memory copy function is being executed
4248
H
: Unsupported memory copy destination I/O Number
S (Status
change)
New
b1 b0b15 b11to to
0
0/1
0/1 0
Module 0:
Module 1:
Module11:
SD1590
Each bit
0:OFF
1:ON
to
CPU module is invalid
as it is 2-slot model
Module on right side of
CPU module
Module at rightmost
end of 12-slot base
(Q312B)