ActiGRAF Help : PODIUM STD200 Frequency Input Description



Frequency Input can operate in frequency mode
the input FREQ0 may be used as source for the Tachymetry function ...

Frequency Mode

- Parameters Description

Parameter Description
TimeOut Defines the nominal period to declare a input time out.


- Mnemonics Description

The mnemonics names for ECU IO must applies a set of rules more details.

The measure range for frequency value is between 0.5 Hz and 12 KHz.

Mnemonic STraToN Type Description
Input_Freq_OFF WORD The Data TOFF_FREQx value is updated with the OFF state duration measurement, the value unit is 1 µs. This is a double word variable, it must apply to the double word rule see variable rules.

Input_Freq_ON WORD The Data TON_FREQx value is updated with the ON state duration measurement, the value unit is 1 µs. This is a double word variable, it must apply to the double word rule see variable rules.

Fault BOOL Indicates Fault detection.
Fault_Type BOOL If an error detected , it indicate the error source:
  • Time Out appears when no signal has been acquired on the input during the time TimeOut.
  • OpenLoad appears when an open circuit has been detected.
  • Equipment BOOL To manage the Fault detection ( more details ).



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