Omega Engineering OMB-DBK-34A, User Manual

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DBK2
4-Channel Voltage Output Card
Overview …… 1
Hardware Setup …… 2
Card Configuration …… 2
Card Connection …… 2
Software Setup …… 3
Use of CA-115 Cables and DIN5 Power Connectors …… 3
DBK2 – Specifications …… 4
This product is not used for LogBook applications.
Reference Notes :
o
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your
system, as needed.
o
In regard to calculating system power requirements, refer to DBK Basics located near
the front of this manual.
Overview
The DBK2 provides the ability to generate precise, bipolar output voltages. The DBK2 connects to the
Daq device P1 port. Like other P1-compatible DBK cards, the DBK2 is addressed using one of 16 base
channels. Up to 4 DBK2s can share a single base channel for a maximum of 256 channels. The DBK2 can
control an array of external devices including programmable power supplies, proportional actuators, analog
indicators, and process controllers.
The DBK2 generates output voltages using a 4-channel 14-bit digital-to-analog converter (DAC). A
precision bipolar reference is used onboard to provide accurate and stable output voltages. Each output
channel is independently jumper configurable for either ±5 V or ±10 V operation. A 14-bit DAC can have
values from 0 to 16,383 (a value of 8192 should produce a voltage of 0). Thus in the ±5 V mode, the
voltage out V
OUT
= [10 V × (DAC/16383)] - 5 V.
DBK2 Block Diagram
DBK Option Cards and Modules
886995
DBK2, pg. 1