Ct Counter - Panasonic FP Series Programming Manual

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Table of Contents

Decrements a preset counter. The function has the following parameters: Count, Reset, Num*,

SV, and C. Their functions are listed in the Data types table below.

1. When the Reset input is on, the elapsed value is reset to 0.

2. When the Reset input changes from on to off, the set value (SV) is preset to the

value assigned to it. The set value can be set to a decimal constant from 0 to 32767.

3. Each time the Count input changes from off to on, the value 1 is subtracted from

the set value SV. When the elapsed value reaches 0, the output C turns on.

4. If the Count input and Reset input both turn on at the same time, the Reset input

is given priority.

5. If the Count input rises and the Reset input falls at the same time, the count

input is ignored and preset is executed.

Availability of CT (see page 1319)

This function does not require a variable at the output C.

subtracts 1 from the set value each time it is activated

 resets the elapsed value when it is ON

 presets the set value when changing from on to off

 Must be a constant

 number assigned to the counter (see System Register

set value is the number the counter starts subtracting from

the counter turns on when it reaches the SV

Counter instructions