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Using a Quantum 984 HSBY System
84
840 USE 106 00 January 2003
Reverse Transfer
Logic
The logic in network 2 of segment 1 contains a BLKM instruction and a STAT
instruction. The Standby enables the STAT. Bits 000815 and 000816 are controlled
by bits 15 and 16 in the Hot Standby status register. The STAT instruction sends one
status register word to 400101; this word initiates a reverse transfer to the Primary
controller.
Remote I/O Logic Internal coil bit 000715 (status bit 11) controls the STANDBY MEMORY PROTECT
OFF lamp. Internal coil bit 000716 (status bit 12) controls the STANDBY BATTERY
FAULT lamp.
000813
(Bit 13)
000814
(Bit 14)
000715
(Bit 11)
000716
(Bit 12)
000813
(Bit 13)
000813
(Bit 13)
BLKM Transfers the Status of
Reverse Transfer Register to
Internal Coils
()
Standby MEMORY PROTECT OFF Lamp
Output Coil
Standby BATTERY FAULT
Output Coil
000208
000209
Segment 2
400101
000705
BLKM
#001