ICPDAS I-8093W, Reference Manual

Page: 42 / 67

I-8093W/I-9093 I/O Module User Manual, v2.0.0 P. 42
4.15. i8093W_SetIndexLatchStatus
This function use to enable/disable the index latch function of I-8093W.
Syntax (For I-8093W only)
int i8093W_SetIndexLatchStatus(
int slot,
int ch,
int ifEnableLatch
);
Parameter
slot:
specifies the slot number (1 ~ 8).
ch:
specifies the channel (0 - 2).
ifEnableLatch:
to enable or disable the index latch function of i-8093.
Return Values
Please refer the Error Code.
Note
1. normally we can use i8093W_GetIndex to read the Z_index status, but sometimes it is not easy
to let the encoder to match the right position, so 8093W add this function to latch the Z_index
status
2. if enable the latch index function and the Z_index latched, the encoder value will also be
latched at the position where Z_index latched point, so we can adjust the encoder position to
the latched point.
3. disable the index latch function, i8093W_Read32BitEncoder can read the normal encoder
value as usual.