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VDAS Setup and Operating Instructions
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3
The Electronic Unit
The VDAS 1500 electronic unit (main chassis) supplies data inputs for the Validyne Data
Acquisition Controller. It can provide up to 300 channels of digital data obtained from various
analog measurement devices, such as thermocouples and strain gauges.
This hardware unit consists of one communications module and up to fifteen card modules of
selected types, depending upon the measurements required by the planned test. The unit can be
placed at any convenient location within the test environment.
VDAS 1500
Figure 1.0
Computer Requirements
The desk or laptop computer must be able to support serial communications at 115,200 baud or
bi-directional parallel communications per the IEEE 1284 specifications. It must also provide a
means to add an optional Ethernet interface through either a PCMCIA port or other equivalent
hardware port.
The Software
For ease of learning and operation, the software is menu-driven. Pull down menus permit the
user to control the electronic chassis, configure tests, view data, record test results, etc. quickly
and efficiently.
There are three types of screens: Data Entry, Display, and Help. All of these screens and their
fields can be accessed through pull down menus with the mouse or on the keyboard with specific
keys that govern selection and cursor movement. These keys are described in the Keyboard
Reference shown in Figure 1.2.