CONTREX CX-1200 - Manual (Page 189)

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Here DI_8 serves as the set input and DI_9 serves as the reset input. Tmp1 retains the state of the latch. If
the Latch Output is used as a digital output, you can use the digital output PLC bit directly (DO_0 through
DO_7, Bits 100-107) as the latch state. The state of this latch is determined in the sequence of the PLC
program .
D_8
8
DO_1
101
DO_1
101
8 DI_8
101 DO_1
9 DI_9
101 DO_1
LOAD
OR
AND NOT
OUT
DI_9
9