PLC Training 31 - Down Counter (CTD Instruction) | Counters in PLC Programming
Aug 31, 2022
Counters are used to count up or down or up-down any function until it reaches the specified limit.
In this PLC learning video, we discuss the DOWN COUNTER (CTD) instruction in Allen Bradley ladder logic programming with examples.
Counter Types:
1. Up Counter
2. Down Counter
3. Up-Down Counter
Counter Specification:
1. Counter Number
2. Preset Value
3. Accumulator Value
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