ICP DAS USA CAN-2084C, Application User'S Manual

Page: 24 / 36

CAN-2084C
User’s Manual (Version 1.00, Sep/2018) ------------- 24
8h Channel 7 Frequency mode UNSIGNED 32 RW 0
Note: When user set 2004 to 02(Frequency mode), user can use 3004
to determine which mode you want
Frequency Mode
Type Code Frequency Mode
0 (default) Normal mode
1 High speed mode
Frequency Time Out Value Entry
Idx Sidx Description Type Attr Default
3005h 0h Number of entries UNSIGNED 8 RO 8h
1h Channel 0 frequency time out value UNSIGNED 16 RW 0BB8h
… … … … …
8h Channel 7 frequency time out value UNSIGNED 16 RW 0BB8h
Note:
Frequency time out value:
Default: 0xBB8 (3000ms)
Range: 0x0 ~ 0xFFFF
For example:
To measure 1k Hz frequency.
In normal mode, only needs 1 ms to update frequency value.
In High Speed mode, it will measure 11 times (necessary 1ms*11=11ms) and
calculate frequency value.
Low Pass Filter Entry
Idx Sidx Description Type Attr Default
3006h 0h Number of entries UNSIGNED 8 RO 8h
1h Channel 0 Low pass filter UNSIGNED 8 RW 0
… … … … …
8h Channel 7 Low pass filter UNSIGNED 8 RW 0
Note: 0 = Disable , 1 = Enable
Low Pass Filter Period Entry
Idx Sidx Description Type Attr Default
3007h 0h Number of entries UNSIGNED 8 RO 8h
1h Channel 0 Low pass filter period UNSIGNED 16 RW 1
… … … … …
8h Channel 7 Low pass filter period UNSIGNED 16 RW 1
Note: Time
Range: 1μs ~ 32767μs