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App-145
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Appendix 3 SPECIAL RELAY LIST
(15) Redundant power supply module information
*1: The "power supply 1" indicates the redundant power supply module mounted on the POWER 1 slot of the redundant base unit (Q38RB/Q68RB/Q65WRB).
The "power supply 2" indicates the redundant power supply module mounted on the POWER 2 slot of the redundant base unit (Q38RB/Q68RB/Q65WRB).
*2: The module whose first 5 digits of serial No. is "04012" or later.
However, for the multiple CPU system configuration, this applies to all CPU modules whose first 5 digits of serial No. are "07032" or later.
*3: The module whose first 5 digits of serial No. is "10042" or later.
TableApp.3.15 Special relay
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding
CPU
SM1760
Transfer trigger
completion flag
OFF : Transmission
uncompleted
ON : Transmission end
SM1760 Block 49
Turns ON only during one
scan when the transmission
of the corresponding block is
completed.
S (status change) New QnPRH
SM1761 SM1761 Block 50
SM1762 SM1762 Block 51
SM1763 SM1763 Block 52
SM1764 SM1764 Block 53
SM1765 SM1765 Block 54
SM1766 SM1766 Block 55
SM1767 SM1767 Block 56
SM1768 SM1768 Block 57
SM1769 SM1769 Block 58
SM1770 SM1770 Block 59
SM1771 SM1771 Block 60
SM1772 SM1772 Block 61
SM1773 SM1773 Block 62
SM1774 SM1774 Block 63
SM1775 SM1775 Block 64
TableApp.3.16 Special relay
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding
CPU
SM1780
Power supply off
detection flag
OFF : No redundant power
supply module with
input power OFF
detected
ON : Redundant power
supply module with
input power OFF
detected
• Turns ON when one or more redundant power
supply modules with input power OFF are detected.
• Turns on if any of SD1780 bits is on.
• Turns off if all bits of SD1780 are off.
• Turns OFF when the main base unit is not the
redundant main base unit (Q38RB).
• When the multiple CPU system is configured, the
flags are stored only to the CPU No.1.
S (Each END)
New
Qn(H)
*2
QnPH
*2
QnPRH
QnU
*3
SM1781
Power supply failure
detection flag
OFF : No faulty redundant
power supply module
detected
ON : Faulty redundant
power supply module
detected
• Turns ON when one or more faulty redundant power
supply modules are detected.
• Turns on if any of SD1781 bits is on.
• Turns off if all bits of SD1781 are off.
• Turns OFF when the main base unit is not the
redundant main base unit (Q38RB).
• When the multiple CPU system is configured, the
flags are stored only to the CPU No.1.
S (Each END)
SM1782
Momentary power
failure detection flag
for power supply 1
*1
OFF : No momentary power
failure detected
ON : Momentary power
failure detected
• Turns ON when a momentary power failure of the
input power supply to the power supply 1 or 2 is
detected one or more times. After turning ON,
remains ON even if the power supply recovers from
the momentary power failure.
• Turns OFF the flag (SM1782, SM1783) of the power
supply 1/2 when the CPU module starts.
• When the input power to one of the redundant power
supply modules turns OFF the corresponding flag
turns OFF.
• Turns OFF when the main base unit is not the
redundant main base unit (Q38RB).
• When the multiple CPU system is configured, the
flags are stored only to the CPU No.1.
S (Each END)
SM1783
Momentary power
failure detection flag
for power supply 2
*1