Down Counter PLC Program
To study the working of Up Counter PLC program in Allen Bradley Programmable Logic Controller (PLC). Down Counter In the above picture, there are totally three parameter, COUNTER: C4:0 –...
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PLC Timer Instructions
A timer is a PLC instruction measuring the amount of time elapsed following an event. Timer instructions come in two basic types: on-delay timers and off-delay timers. Both “on-delay” and...