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VCM-DAS-3 Datasheet(PDF) 36 Page - List of Unclassifed Manufacturers

Part # VCM-DAS-3
Description  The VCM-DAS-3 is a PC/104-format data acquisition board that provides analog outputs and digital I/O for process control and other applications.
PDF  42 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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VCM-DAS-3 Datasheet(HTML) 36 Page - List of Unclassifed Manufacturers

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Analog Output Code Example
VCM-DAS-3 Reference Manual
31
Analog Output Code Example
The following Visual BASIC code illustrates how to operate the analog output feature of the
VCM-DAS-3.
FUNCTION LIB_das3aout (BYVAL channel, BYVAL range, BYVAL voltage)
'
'Description:
This function performs an
'
analog output operation to the
'
specified channel.
'
'Entry:
channel: analog output channel (0 to 15)
'
range:
0=5V, 1=10V, 2=+/-5V, 3=+/-10V
'
4=2.5V, 5=-2.5V/+7.5V
'
voltage: analog output voltage (within range)
'
'Returns:
0 if no errors
'
1 if timeout occurs
'
'Examples:
'Output +5.000V on channel 0
'
x = LIB_das3aout (0,1,5.000)
'
'
'Output -7.500V on channel 1
'
x = LIB_das3aou (1, 3, -7.500)
'
'Enhanced Control Register (BASE + 0xA)
'
D7
D6
D5
D5
D3
D2
D1
D0
'
EC3
EC2
EC1
EC0
---DAC CHANNEL---
'
=====================================
'
0V to +5V
0
0
0
0
'
0V to +10V
0
0
0
1
'
-5V to +5V
0
0
1
0
' -10V to +10V
0
0
1
1
'-2.5V to +2.5V
0
1
0
0
'-2.5V to +7.5V
0
1
0
1
DIM value AS INTEGER
DIM hidac AS INTEGER
DIM lodac AS INTEGER
DIM done AS INTEGER
DIM y AS INTEGER
DIM x AS INTEGER
DIM bipolar AS INTEGER
DIM fullscale AS SINGLE
SELECT CASE range
CASE 0
'+5V
bipolar = 0
fullscale = 5
CASE 1
'+10V
bipolar = 0
fullscale = 10
CASE 2
'+/-5V
bipolar = 1
fullscale = 5



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