VME-DAC1612
16 Analog Outputs
-
Up To 16 D/A Converters
-
General purpose analog output board
-
12 bits resolution, 5ms settling time
-
Multiple output voltage ranges possible, optionally current
outputs for 8 channels
-
Buffered outputs, short-circuit-proof
-
Industrial Standard
-
Safety of operation by electrical isolation between VMEbus and
process environment
-
Proper wiring of analog outputs and analog parts power supply to
the backplane via P2 and at the front panel
Output Circuit
The VME-DAC1612 is an interface board designed for the generation
of up to 16 analog signals for process control purposes. Select output voltages
0...+5 V, 0...+10 V, ±5 V or ±10 V.
Set the corresponding jumper on the board to make your selection.
Use the potentiometers to adjust gain and offset. The VME-DAC1612 includes
adjustments for bipolar voltages.
Adapter Board
Conversion of the output voltage (0...+10 V) into an output
current (0...20 mA or 4...20 mA) is possible with option VME-DAC812-20mA for 4
or 8 channels.
Electrical Isolation
Fast magnetic coupling barriers IL715 and DC/DC-converters perform
the electrical isolation between VMEbus and analog process section.
Wiring
The P2 connector links both the external power supply inputs of
the analog section and the process signals to the system. esd electronics, Inc.
recommends the option DAC1612-ADAPT1 or DAC1612-ADAPT2 for connecting the
signals from P2 with ribbon cable to an industrial mounted module (according to
DIN EN 50022) with terminal blocks. Two 34-pin post connectors on the front
panel allow easy accessibility to the analog outputs.
Software Support
Simple commands control the VME-DAC1612 via VMEbus so that no
driver is necessary. However, drivers for all popular operating systems are available.
Technical Specifications:
|
Process
section:
|
|
Outputs:
|
unipolar: 0...+5 V or
0...+10 V
bipolar: -5...+5 V or
-10...+10 V
output current: 0...20
mA or 4...20 mA
(with
option DAC812-20mA, 8 channels)
|
|
Number of channels:
|
4, 8 or 16 channels
|
|
Resolution:
|
12 bits
|
|
Settling time:
|
5 ms (VME data in to output, typ. 20
°C)
|
|
LED array:
|
BUSY (board select)
|
|
Electrical isolation:
|
By digital isolators IL715 and DC/DC converters
|
|
VMEbus
section:
|
|
Base address:
|
Selectable by jumpers over the whole address range of 16 Mbytes.
The board covers 256 bytes.
|
|
Address modifier
|
Full AM decoding additionally with don't care (AM): mode for
'supervisory' /'non-privileged' mode
|
|
VMEbus revision compatibility:
|
IEEE 1014 rev. C.1
|
|
Data transfer options:
|
SADO24, SD16
|
|
General:
|
|
Ambient temperature:
|
0...70 /C
|
|
Humidity:
|
Max. 90%, non-condensing
|
|
Connector types:
|
P1, P2: DIN 41612-C96
P800, P801: 34-pin post connector
|
|
Board size:
|
160 mm x 233 mm
|
|
VME dimensions:
|
6U height, 1 slot width
|
|
Weight:
|
400 g
|
|
Power consumption:
|
Typ. 1.6 A at 5 VDC
|
Order information:
|
Designation
|
|
Order
no.
|
|
VME-DAC1612-x
|
x channels unipolar/bipolar 0...+10 V, -10...+10 V
(x = 04, 08, 16)
|
V.1706.x
|
|
VME-DAC1612-ADAPT1
|
Adapter module with screw terminal blocks, connection to P2
|
V.1706.09
|
|
VME-DAC1612-ADAPT2
|
Adapter module with clamp terminal blocks, connection to P2
|
V.1706.10
|
|
VME-DAC812-20mA-x
|
Adapter for conversion to 0(4)...20 mA
(x = 4, 8)
|
V.1706.2x
|
|
VME-DAC1612-OS
|
C driver for OS-9 as source code
|
P.1706.50
|
|
VME-DAC1612-VxW
|
C driver for VxWorks as source code
|
P.1706.56
|