Next: Rung 1: Mask/shutter status Up: Logic programming Previous: Logic programming Contents
Mask/shutter open if [V1, V2 open; water on; air ok; X1B shutter enabled] and [[M0 retracted] or [V3, V4i, V4o, V5i, V5o open]] and [V1, V3 not overridden]
| V1 OS |V1 CS |V2 OS M0 out NO
|
| I:5 I:5 I:5 I:8 >
|----] [--------]/[--------] [-----+----] [------------------------------------>
| 19 20 21 | 6 >
| | V3 OS |V3 CS |V4i OS
| | I:5 I:5 I:5 >
| +----] [--------]/[--------] [-------------->
| 22 23 24 >
< >
<-----------------------------------------------------------------------------+>
< |>
V4i CS |V5i OS |V5i CS |V4o OS |V4o CS |V5o OS |V5o CS |
< I:5 I:5 I:5 I:6 I:6 I:6 I:6 |
<---]/[--------] [--------]/[--------] [--------]/[--------] [--------]/[-----+
< 25 26 27 6 7 8 9
X1B EnSh |WF1 |WF2 |air flow |V1 orA |V3 orA |FE EnSh NO |
|relay |
< I:8 I:7 I:7 I:7 I:7 I:7 O:2 |
<----] [--------] [--------] [--------] [--------]/[--------]/[--------( )-----|
< 3 28 29 27 12 13 0 |
|
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