User`s guide

38 • DDE Item Names In PCIS-DDE
* “PASAIn” and “PAIn” (n is the channel number) commands are both used
for analog data in. For signal channel analog data input, the performance
of these two commands are almost the same. However, for
multi-channels analog data input, using “PASAIn” can get much higher
performance than “PAIn”. Hence “PASAIn” command is especially
suitable for multi-channels analog data input.
* “PASBIn/PAEBIn” and “PBIn/PEBIn” (n is the bit number) commands are
both used for n-th bit digital data in. For signal bit digital data input, the
performance of these two commands are almost the same. However, for
multi-bits digital data input, using “PASBIn/PAEBIn” can get much higher
performance than “PBIn/PEBIn”. Hence “PASBIn/PAEBIn” command is
especially suitable for multi-bits digital data input.
4.9 PCI-9112
Analog I/O, Digital I/O and Range Setting Command Set
Command Item Name
Requested/Poked
value
R/W Data Type
Read Analog Input PAI0…PAI15
Data range:
0 ~ 4095
example: 2048
R Integer
Fast Analog Input
PASAI0 …
PASAI15*
Data range:
0 ~ 4095
example: 2048
R Integer
Analog Data Out
PAO0
PAO1
Data range:
0 ~ 4095
example: 2048
W Integer
Digital Data In PDI
Data Range: 0~65535
Example: 32767
R Integer
Digital Data Out PDO
Data Range: 0~65535
Example: 32767
W Integer
Nth bit Digital Data In
(N is the bit number)
PBI0…PBI15
Data: 0 or 1 R Integer
Fast Nth bit Digital
Data In (N is the bit
number)
PASBI0 …
PASBI15*
Data: 0 or 1
R Integer
Analog Input Range
Setting
PSR
Data Range*:
1 ~ 5 (Bipolar)
15 ~ 18 (Unipolar)
Example: 2, indicates
that the AI range is ±
5V
W Integer