Technical data

Chapter 9 SM 238C - Combination module Manual VIPA System 200V
9-40 HB97E - SM - Rev. 09/19
Technical Data
Dimensions and weight 238-2BC00
Current consumption via back plane bus 280mA
Dimensions (WxHxD) in mm 50.8x76x88mm
Weight 100g
Electrical Data VIPA 238-2BC00 (1/2) AI4/AO2*12Bit
Number of Current-/Voltage input 3
Number of resistance input 1
Number of outputs 2
Length of cable: shielded 200m
Voltages, Currents, Potentials
Supply voltage DC 24V (20.4 ... 28.8V)
- reverse polarity protection yes
Constant current for resistance-type
sensor
1.25mA
Isolation
- channels / backplane bus
- channel / power supply of the
electronic
- between the channels
yes
yes
no
Permitted potential difference
- between the inputs (U
CM
)
- between the inputs and M
INTERNAL
(U
ISO
)
DC 4V
DC 75V/AC 60V
Isolation tested with DC 500V
Current consumption
- from the power supply L+ 60mA (no load)
Power dissipation of the module 2W
Analog value calculation input Conversion time/Resolution (per channel)
Measuring principle Sigma-Delta
Parameterizable Yes
Conversion rate (Hz) 200 170 120 60 30 15 7.5 3.7
Integration time (ms) 5 6 8 17 33 67 133 270
Basic conversion time (ms) 7 8 10 19 35 69 135 272
Resolution (Bit) incl. overrange 10 12 14 15 16 16 16 16
Noise suppression for frequency f1 (Hz) no 50 and 60Hz
Basic execution time of the module, in
ms (all channels enabled)
28 32 40 76 140 276 540 1088
Smoothing of the measured values none
Analog value calculation output
channels
Resolution (incl. overrange)
±10V, ±20mA 11bit + sign
4 ... 20mA, 1 ... 5V 10bit
0 ... 10V, 0 ... 20mA 11bit
Conversion time (per channel) 1.5ms
Settling time
impedance load 0.3ms
capacitive load 1.0ms
inductive load 0.5ms
continued ...
General
Analog In-/Output