ICPDAS I-8093W, Reference Manual

Page: 41 / 67

I-8093W/I-9093 I/O Module User Manual, v2.0.0 P. 41
4.14. i8093W_ReadFreq
This function use to read frequency value of encoder input signal.
Syntax (For I-8093W only)
int i8093W_ReadFreq(
int slot,
int ch,
float* freq
);
Parameter
slot:
specifies the slot number (1 ~ 8).
ch:
specifies the channel (0 ~ 2).
* freq:
[output] get frequency value.
Return Values
Please refer the Error Code.
Note
1: read frequency function supported by firmware version 3 or later version.
2: if there is no encoder input, the frequency will be 0.093 not 0
Example
int slot , ch ;
float freq;
Open_Slot(slot);
i8093W_ReadFreq(slot , ch , &freq);