Question: I need to create the ladder logic program for this one, this is the only problem I am struggling with 8-4 Write a documented program
I need to create the ladder logic program for this one, this is the only problem I am struggling with
8-4 Write a documented program that will implement the following alarm monitor circuit:
The closing of a high liquid level sensor switch triggers an alarm light.
The light will flash whenever the alarm condition is triggered and has not been acknowledged, even if the alarm condition clears in the meantime.
The alarm is acknowledged by closing a selector switch.
The light will operate in the steady on mode when the alarm trigger condition still exists but has been acknowledged.
Use the Batch Simulator screen and the following addresses to simulate the program:
Fill (Start PB-NO) _ I:1/0
Empty (Stop PB-NC) _ I:1/1
Pump1 (Fill Pump) O:2/1
Pump3 (Discharge Pump) O:2/3
High Level Sensor (NO) _ I:1/4
Selector Switch (NO Pos B) _ I:1/10
Alarm Light _ O:2/7
TON _ T4:5
TON _ T4:6
CTU _ C5:1
The two timers should be 10 seconds
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