PLC Programming to Control Lights in a Sequence
Develop ladder logic program for a display sign that will sequentially turn ON. Three lights (L1, L2, L3) 3 sec apart. Turn Off all the lights after 6 sec. Three...
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PLC Sequencer Instruction with Example
The PLC Sequencer Instruction (SQO) is an output instruction. SQO instructions can perform the same specific “ON” or “OFF” patterns of outputs that are continuously repeated. The advantage of sequencer...