Digital dbk expansion …… b-13 – Measurement Computing DASYLab User Manual
Page 67

DASYLab – Standard Driver
989593
Configuring
DASYLab for Daq Devices B-13
Digital DBK Expansion
Note: DaqBoard/1000 Series devices do not support DBK options.
The DBK digital expansion option cards must be configured sequentially, just like analog expansion cards.
Since the various boards have differing bit counts and addressing, great care must be taken when installing
these options.
For ISA and Parallel Port-based Daq devices, digital input on P2 requires that the
P3 High-Speed Inputs be disabled.
Hardware Configuration Digital Inputs
Add the digital DBK modules to the empty connector in the “Programmable I/O Lines” section.
Add them in order of largest to smallest channel count (DBK20/21 then DBK23/24 then DBK25s).
Then adjust the switches on the DBK cards such that the addresses are sequential.
Configure Digital DBK expansion cards from largest channel count down; for example:
DBK20/21
⇒
DBK23/24
⇒
DBK25
Note that these settings are saved in the Configuration File, but not with the worksheet.
Note that during the configuring process, you will see the correct address setting for each
DBK card.
Good and bad setup examples follow.