USER MANUAL 1.10 | DC1000 DIALOG-CONTROLLER
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
2VF100124FE08.docx | DC1000_HB_en_2D0982010ZD00.docx
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Analog input parameters (AI)
Digital filtering
Adjustable digital post-filtering facilitates constant signal movements.
Low-pass of the 2
nd
order, 1 Hz (-6 dB at 1 Hz, 10 Hz, 100 Hz or
200 Hz).
Digital filtering takes place every 1 ms.
Internal data transfer
A1 and A2
transmit with 1 ms.
A3-A4 and B1-B4
transmit with max. 4 ms.
Voltage input (AI-U) mode
Connections per output
+ and -, connect shield to AGND
Static characteristics
Differential measuring range
-
10…+10 V
Input impedance in the signal
range
500 k
Ω (b und -)
Measuring errors
Greatest error at 25° C
±1000 ppm (±20 mV)
Temperature coefficient
±20 ppm/°K (±0.4 mV/°K)
Digital resolution
22 bit
Data format in the application
program
32 bit Real (24 bit payload)
Maximum permitted
continuous overload
Max. voltage on A+ or A- is ±14 V to AGND.
Digital value output during
overload
If a voltage differential of 10 V is exceeded, the accuracy of this chan-
nel may be impaired; measured values are limited.
If a voltage differential of 15 V is exceeded, the card reports an error
which must be remedied.
Input type
Differential voltage measurement
Even range
-12 V < A+ < +12 V,
-12 V < A- < +12 V
Common-mode rejection
60 dB (direct current); 20 dB at 50 Hz
Dynamic characteristics
Greatest temporary differential
during electrical interference
test in compliance with IEC
61131-2
1.5 % of the measuring range
applicable to all
A and B channels
