Mitsubishi Electric Q13UDVCPU - Page 587

585
APPENDICES
A
Appendix 3 List of Special Register Areas
(23)Redundant power supply module information
The special register (SD1780 to SD1789) is valid only for redundant power supply systems. All bits are set to "0"
for stand-alone power supply systems.
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
D9
Corresponding
CPU
SD1780
Power supply
off detection
status
Power supply
off detection
status
• This register stores the status of the redundant power
supply module (Q63RP, Q64RPN, or Q64RP) with input
power off, in the following bit pattern.
• When the main base unit is not the redundant power main
base unit (Q38RB), "0" is stored.
• In a multiple CPU system, the status is stored only to CPU
module No.1.
S (Every
END
processing)
New
Qn(H)
*3
QnPH
*3
QnPRH
QnU
*4
SD1781
Power supply
failure
detection
status
Power supply
failure
detection
status
• This register stores the failure detection status of the
redundant power supply module (Q63RP, Q64RPN, or
Q64RP) in the following bit pattern. (After a failure is
detected, the bit corresponding to the failed module is set
to "0" upon powering off the module.)
• When the main base unit is not the redundant power main
base unit (Q38RB), "0" is stored.
• In a multiple CPU system, the status is stored only to CPU
module No.1.
S (Every
END
processing)
New
Qn(H)
*3
QnPH
*3
QnPRH
QnU
*4
b0b7b8b15
SD1780
b9 b1
:
:
toto
toto
Input power OFF
detection status of
power supply 2
Each bit
0: Input power ON status/
No redundant power
supply module
1: Input power OFF status
Input power OFF
detection status of
power supply 1
1
1
Main base unit
1st extension base
7th extension base
Main base unit
1st extension base
7th extension base
b0b7b8 b1b9b15
SD1781
:
:
toto
toto
Failure detection
status of power
supply 1
Failure detection
status of power
supply 2
1
1
Each bit
0: Redundant power
supply module failure
not detected/
No redundant power
supply module
1: Redundant power
supply module failure
detected (Detectable
for redundant power
supply module only)
Main base unit
1st extension base
7th extension base
Main base unit
1st extension base
7th extension base