Setup guide
Chapter 3 Driver and Protocol Objects
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Automationdirect.com 3-67 Object Reference Manual
The Skip every n setting instructs Lookout
Direct
to not poll a device it has
lost communication with on every scheduled poll. Instead, Lookout
Direct
skips the device in the polling cycle. Once communications have been
reestablished, the device is polled on its regular cycle.
IAK configuration file is a dialog for selecting an IAK configuration file.
The IAK file contains alias and scaling information which is extracted for
use in Lookout
Direct. Choose the configuration file you want to use by
entering the path directly, or use the Browse button. Check Import alias
information if you want to extract information from the selected file.
FieldPoint Data Members
As with all Lookout
Direct
drivers, you can access I/O points and other data
through data members. The following is a table of data members currently
supported by the FieldPoint object class.
Table 3-13. National Instruments FieldPoint Data Members
Data Member Type Read Write Description
AI000.00 - AI255.15 numeric yes no Analog input channels.
AO000.00 - AO255.15 numeric yes yes Analog output channels.
CA000.00 - CA255.15 numeric yes no Use to connect to count inputs on a
FieldPoint counter module.
CD000.00 - CD255.15 logical yes no Use to connect to digital inputs on a
FieldPoint counter module.
CI000.00 - CI255.15 logical no yes Counter increment.
CO000.00 - CO255.15 logical yes yes Use to connect to digital outputs in a
FieldPoint Counter module.
CommFail logical yes no Goes high if LookoutDirect
cannot
communicate with the device.
CR000.00 - CR255.15 logical no yes Counter reset.
DI000.00 - DI255.15 logical yes no Discrete input channels.
DO000.00 - DO255.15 logical yes yes Discrete output channels.
PF000.00 - PF255.15 numeric yes yes Pulse width modulator period setting.
Period is the entire on/off time of the
pulse in milliseconds.