User`s guide

DDE Item Names In PCIS-DDE • 29
* “PASBIn” and “PBIn” (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” can get much higher performance than “PBIn”.
Hence “PASBIn” command is especially suitable for multi-bits digital data
input.
4.2 PCI-7230
Digital I/O Command Set
Command Item Name
Requested/Poked
value
R/W
Data
Type
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 Dat In
(N is the bitnumber)
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
* For InTouch, the value of Nth bit of PDO/PDI can be poked by using
Tag.0N as the item name. For example, to poke the value of the 0th bit of
PDO, set tagname as Tag.00, or to poke the value of the 1st bit of PDO,
set tagname as Tag.01.
* “PASBIn” and “PBIn” (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” can get much higher performance than “PBIn”.
Hence “PASBIn” command is especially suitable for multi-bits digital data
input.