Eaton easyE4 Manual page 514

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6. Function blocks

6.2 interrupt function blocks

Frequency counter; f > SV

Frequency counter; f < SV

In the case of pulse counter with external direction control,

device inputs I1 through I4 must be used as pulse inputs and

device inputs I5 through I8 must be used as direction inputs.

In the case of counters with 2 counter inputs, I1 through I4

should be used with first priority.

In the case of incremental encounters, I1 through I4 should be

used with first priority.

In the case of incremental counters, channel A and channel B

must deliver pulses with an offset of 90°.

IC function block with incremental counter operating mode, up or down count; Double

Function block outputs

Bit output used to provide operand states from

the interrupt program to the main program.

Current count

easyE4 10/19 MN050009 EN www.eaton.com

When there is a complete channel A

and B period (e.g., first channel A

edge to next channel A edge), the

value at IC..QV is incremented or

decremented by 2 depending on the

counting direction.

I1...I8, timeout of the frequency ref-

Measuring interval 0.01s, 500 Hz -

Measuring interval 0.1 s, 50 Hz -

Measuring interval 1.0 s 5 Hz - 5000

I1 – I8, Frequency reference fallen

Measuring interval 0.01s, 500 Hz -

Measuring interval 0.1 s, 50 Hz -

Measuring interval 1.0 s 5 Hz - 5000

Integer value range:

-2,147,483,648 to +2,147,483,647

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