In the previous lesson we talked about the different ways to generate timing pulses or flashing bits within your PLC program. Also, in other lessons, some time ago, we discussed how to generate pulses using timers. In this lesson, we are going to recap how to create these pulses and work with the simulator to demonstrate the code.
Generating Square Wave Using Pulse Timer PLC Program:
https://realpars.vhx.tv/videos/70-generatingsquarewave-final
Automatic Industrial Dryer PLC Program:
https://realpars.vhx.tv/videos/71-automatic-industrial-dryer-final
In this lesson, we are going to discuss how to handle alarming. Visual alarm indicators may be lights on the plant floor or alarm symbols on an HMI screen and as common industry standard, an indicator should flash when an alarm occurs but only until acknowledged. After acknowledgement, the indica...
In the previous lesson we began writing some code that would post and acknowledge alarms per industry standard. As you know, we ran into a little problem with the code clearing the alarm after acknowledgement but it would not re-post the alarm in constant mode. In this lesson, we are going to tro...
In this lesson we are going to energize 16 lamps at the same time, with the press of a switch. After some time delay, we want the lamps to turn off one at a time, one every second, until all of lamps are de-energized. We will be using the shift instruction to accomplish this task. After we write ...
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