Topic: DMD0131

DEC - Decrement

The Decrement (DEC) instruction decrements the value in the specified Element location by 1.

Note - this instruction is power-flow-based - not edge triggered - which means that it will decrement the specified location each PLC scan in which the input logic is TRUE.

Parameters:

Note: Use the F9 key (Element Browser) or Down-Arrow key (Auto-Complete) at any time to see a complete list of the memory locations that are valid in the current field of the instruction.

Element - designates the memory location to decrement. This can be any writable numeric location.

See Also:

• DEC - Decrement

• INC - Increment

Related Topics:

• CNT - Up Counter

• CNTDN - Down Counter

• UDC - Up/Down Counter

Example: