HAEHNE
Elektronische Messgeräte GmbH · Heinrich-Hertz-Str. 29 · D-40699 Erkrath Germany · Telefon 0211/9 25 91-0 · Fax 0211/9 25 91-20
http://www.haehne.de
Email: [email protected]
HAEHNE
Elektronische Messgeräte GmbH · Heinrich-Hertz-Str. 29 · D-40699 Erkrath Germany · Telefon 0211/9 25 91-0 · Fax 0211/9 25 91-20
http://www.haehne.de
Email: [email protected]
DCX
4
2. Hardware Design
The DCX is a user-oriented combination of functional units which are arranged around the core: the Digital Signal
Processor. This runs synchronously to the A / D converter with a cycle time of 0.52 ms. In one clock cycle every
eight converter signals, present in the A / D, are read, processed and issued again with 16 bit resolution.
Parallel to this, in the same clock cycle, occurs the conversion of the eight analog input signals into digital signals
in the 24 bit sigma-delta converter. These are available in the next clock cycle for further processing.
Analog Inputs
The eight inputs are designed either as a measuring amplifier differential inputs to connect to strain gauge
sensors or at the option of the customer as ±10 V signal input voltages. The differential inputs are normalized
to ± 20 mV.
Signals up to max. ± 40 mV can be analyzed. The normalized ± 10 V analog inputs can process signals
up to 13.5 V.
Analog Outputs
The eight optional analog outputs are normalized to ± 10 V. The maximum voltage is ± 12 V. They are fully
configurable in terms of operating range and assignment. To each voltage output a current output can be option
-
ally assigned. The current range 4-20 mA corresponds to the standard signal 0-10 V.
8 Channel
A/D-
Converter
24-Bit
Sigma-Delta
2 - 8 Strain gauge input
Nominal voltage ±20 mV
max. ±40 mV
6 - 0 Voltage inputs
Nominal voltage ±10 V
max. ±13.5 V
Processor
with Flash
0.52 ms
Cycle time
4 Channel
D/A-
Converter
16-Bit
2 x 4 Digital inputs
(Photocoupler / 24 V)
0 - 8 Digital outputs
(Reed relays / NO / 24 VDC/ 300 mA / 1 ms optional
single pole double throw (AEM) 230 VAC / 1 A / 10 ms)
Nominal voltage ± 10V
max. ± 12V
U/I-
Converter
(0)4-20 mA
Bridge supply voltage
every two channels
10V / 160 mA
Value
storage
Display
160x104
Touch Panel
Reference voltage
10V/10mA
e
ve
ry
Ch
an
ne
l
Anybusinterface
2x
Hardware Design
