CONTREX CX-1200 - Manual (Page 186)

5 - 93
Another example:
DI_8
8
DO_1
101
DI_10
10
DI_9
9
DI_11
11
8 DI_8
9 DI_9
10 DI_10
11 DI_11
12 DI_12
0 S0
0 S0
101 DO_1
LOAD
AND
LOAD
LOAD
OR
AND
OR
OUT
DI_12
12
Assume DI_8,9,10,11,12 have values of 1,1,0,1,1
Before “LOAD 8 DI_8”:
S1: 0
S0: 0
R: 0
After “LOAD 8 DI_8” (stack is lifted)
S1: 0
S0: 0
R: 1
After “AND 9 DI_9”:
S1: 0
S0: 0
R: 1
After “LOAD 10 DI_10” (stack is lifted):
S1: 0
S0: 1
R: 0
After “LOAD 11 DI_11” (stack is lifted):
S1: 1
S0: 0
R: 1
After “OR 12 DI_12”:
S1: 1
S0: 0
R: 1