Woodward DTSC-200A - Table 3-3: Limit Switch Monitoring - Truth Table for Open Limit Switch with Open Replies

Manual 37941A DTSC-200A - ATS Controller - Operation
© Woodward Page 27/37
S1 preferred
98.11 LM:
S1 Priority
S1 source
OK
LM 19.01
S2 source
OK
LM 19.11
S1 closed signal
S2 closed signal
S1 open signal
S2 open signal
Actual
Expected
1
0
0
1
0
1
1
S1 S1O S2O
S1 S2O
1
0
0
1
1
0
0
S1 S2
S1 S2O
1
0
0
1
1
0
1
S1 S2 S2O
S1 S2O
1
0
0
1
1
1
0
S1 S2 S1O
S1 S2O
1
0
0
1
1
1
1
S1 S2 S1O S2O
S1 S2O
1
0
1
0
0
0
0
-----
S2 S1O
1
0
1
0
0
0
1
S2O
S2 S1O
1
0
1
0
0
1
0
S1O
S2 S1O
1
0
1
0
0
1
1
OK
OK
1
0
1
0
1
0
0
S2
S2 S1O
1
0
1
0
1
0
1
S2 S2O
S2 S1O
1
0
1
0
1
1
0
OK
OK
1
0
1
0
1
1
1
S2 S1O S2O
S2 S1O
1
0
1
1
0
0
0
S1
S2 S1O
1
0
1
1
0
0
1
OK
OK
1
0
1
1
0
1
0
S1 S1O
S2 S1O
1
0
1
1
0
1
1
S1 S1O S2O
S2 S1O
1
0
1
1
1
0
0
S1 S2
S2 S1O
1
0
1
1
1
0
1
S1 S2 S2O
S2 S1O
1
0
1
1
1
1
0
S1 S2 S1O
S2 S1O
1
0
1
1
1
1
1
S1 S2 S1O S2O
S2 S1O
1
1
0
0
0
0
0
-----
S1 S2O
1
1
0
0
0
0
1
S2O
S1 S2O
1
1
0
0
0
1
0
S1O
S1 S2O
1
1
0
0
0
1
1
OK
OK
1
1
0
0
1
0
0
S2
S1 S2O
1
1
0
0
1
0
1
S2 S2O
S1 S2O
1
1
0
0
1
1
0
OK
OK
1
1
0
0
1
1
1
S2 S1O S2O
S1 S2O
1
1
0
1
0
0
0
S1
S1 S2O
1
1
0
1
0
0
1
OK
OK
1
1
0
1
0
1
0
S1 S1O
S1 S2O
1
1
0
1
0
1
1
S1 S1O S2O
S1 S2O
1
1
0
1
1
0
0
S1 S2
S1 S2O
1
1
0
1
1
0
1
S1 S2 S2O
S1 S2O
1
1
0
1
1
1
0
S1 S2 S1O
S1 S2O
1
1
0
1
1
1
1
S1 S2 S1O S2O
S1 S2O
1
1
1
0
0
0
0
-----
S1 S2O
1
1
1
0
0
0
1
S2O
S1 S2O
1
1
1
0
0
1
0
S1O
S1 S2O
1
1
1
0
0
1
1
OK
OK
1
1
1
0
1
0
0
S2
S1 S2O
1
1
1
0
1
0
1
S2 S2O
S1 S2O
1
1
1
0
1
1
0
OK
OK
1
1
1
0
1
1
1
S2 S1O S2O
S1 S2O
1
1
1
1
0
0
0
S1
S1 S2O
1
1
1
1
0
0
1
OK
OK
1
1
1
1
0
1
0
S1 S1O
S1 S2O
1
1
1
1
0
1
1
S1 S1O S2O
S1 S2O
1
1
1
1
1
0
0
S1 S2
S1 S2O
1
1
1
1
1
0
1
S1 S2 S2O
S1 S2O
1
1
1
1
1
1
0
S1 S2 S1O
S1 S2O
1
1
1
1
1
1
1
S1 S2 S1O S2O
S1 S2O
Table 3-3: Limit switch monitoring - truth table for "Open" limit switch with "Open" replies