HSC counts only at a realy low frequency

Hello all.

Has anyone ever had a problem that the HSC counts only at a realy low  frequency. I have connected a A/B/Z encoder (the same type as in my previous projects) to inputs I0.0. and I0.1. The HSC is configured like so:

Type of counting: Count

Operating phase: Single phase

Counting direction is specified by: Input

Initial counting direction: Count UP

Clock generator input: I0.0

Direction input I0.1

The encoders resolution is 500 parts/turn. So I have measured the frequency that it generates and is really low around 8 kHz maximum. So this shouldn't be a problem seeing that the inputs are 100kHz.

Like I said if I turn the encored really slow the counting works and is accurate. 500 parts per turn.

Any ideas out there???

Cheers.

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Split from Sample Program: S7-1200 High Speed Counter (HSC).

Thank you. It works like it should now. It's a shame that you have to manually set this. Seeing that you activate the HSC function this filtering time should be corrected automatically.

Anyhow... thank you for the help.

Best regards.

A