B&R Industries X20 System, Руководство пользователя

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X20 system modules • Analog input modules • X20AI2438
194 X20 system User's Manual 3.10
4.3.7.3 Technical data
Product ID X20AI2438
Short description
I/O module 2 analog inputs, 4 to 20 mA or 0 to 25 mA
General information
B&R ID code 0xB3A9
Status indicators I/O function per channel, operating state, module status, sensor supply per channel, HART
Diagnostics
Module run/error Yes, using status LED and software status
Inputs Yes, using status LED and software status
Sensor supply Yes, using status LED and software status
HART link Yes, using status LED and software status
HART error Yes, using status LED and software status
Power consumption
Bus 0.05 W
Internal I/O 1.15 W
1)
External I/O 1.5 W
2)
Additional power dissipation caused by the actua-
tors (resistive) [W]
-
Electrical isolation
Channel - Bus Yes
Channel - Channel Yes
Certification
CE Yes
cULus Yes
ATEX Zone 2 Yes
KC Yes
GOST-R Yes
Analog inputs
Input 4 to 20 mA or 0 to 25 mA (can be configured via software)
Input type Differential input
Digital converter resolution 15-bit
Data output rate
With HART 4.7 to 10 scans per second, can be set using software
Analog 4.7 to 100 scans per second, can be set using software
Output format INT
Output format
4 to 20 mA INT 0x0000 - 0x7FFF / 1 LSB = 0x0001 = 488.281 nA
0 to 25 mA INT 0x0000 - 0x7FFF / 1 LSB = 0x0001 = 762.939 nA
0 to 25000 µA INT 0x0000 - 0x61A8 / 1 LSB = 0x0001 = 1000 nA
Load <300 Ω
Input protection Up to 30 VDC, reverse polarity protection (max. 0.1 A)
Open line detection Yes, via software
Permitted input signal 0 to 25 mA
Output of the digital value during overload Configurable
Conversion procedure Sigma Delta
Max. error at 25°C
Gain
0 to 25 mA <0.046%
3)
4 to 20 mA <0.046%
3)
Offset
0 to 25 mA <0.004%
4)
4 to 20 mA <0.013%
4)
Common-mode rejection
DC 80 dB
50 Hz Depends on the sampling rate: e.g. >130 dB for 50 scans per second
Common-mode range 0 to 7 V
Non-linearity <0.003%
4)
Input filter
Hardware 1st-order low pass / cut-off frequency 100 Hz
Software Sinc
4
filter
Maximum gain drift
0 to 25 mA 0.003 %/°C
3)
4 to 20 mA 0.003 %/°C
3)
Maximum offset drift
0 to 25 mA 0.0002 %/°C
4)
4 to 20 mA 0.0007 %/°C
4)
Test voltage between
Channel and channel 1500 VAC
Channel and bus 1500 VAC
To ground 1500 VAC
Sensor supply
Nominal voltage 25 V ±2 %
Nominal output current Max. 30 mA
Table 42: X20AI2438 - Technical data