Chapter 2 Analog input modules Manual VIPA System 200V
2-8 HB97E - SM-AIO - Rev. 12/32
Order number 231-1BD30
Type SM 231, ECO
Current consumption/power loss
Current consumption from backplane bus 120 mA
Power loss 0.6 W
Technical data analog inputs
Number of inputs 4
Cable length, shielded 200 m
Rated load voltage -
Current consumption from load voltage L+ (without
load)
-
Voltage inputs
9
Min. input resistance (voltage range) 100 kΩ
Input voltage ranges -10 V ... +10 V
Operational limit of voltage ranges +/-0.2%
Basic error limit voltage ranges with SFU +/-0.1%
Current inputs -
Max. input resistance (current range) -
Input current ranges -
Operational limit of current ranges -
Basic error limit current ranges with SFU -
Resistance inputs -
Resistance ranges -
Operational limit of resistor ranges -
Basic error limit -
Resistance thermometer inputs -
Resistance thermometer ranges -
Operational limit of resistance thermometer ranges -
Basic error limit thermoresistor ranges -
Thermocouple inputs -
Thermocouple ranges -
Operational limit of thermocouple ranges -
Basic error limit thermoelement ranges -
Programmable temperature compensation -
External temperature compensation -
Internal temperature compensation -
Resolution in bit 13
Measurement principle successive approximation
Basic conversion time 2 ms / channel
Noise suppression for frequency f=50 Hz...400 Hz
Initial data size 8 Byte
Status information, alarms, diagnostics
Status display none
Interrupts no
Process alarm no
Diagnostic interrupt no
Diagnostic functions no
Diagnostics information read-out none
Supply voltage display none
Group error display red SF LED
Channel error display none
Isolation
Between channels -
Between channels of groups to -
Between channels and backplane bus
9
Between channels and power supply -
Max. potential difference between circuits -
Max. potential difference between inputs (Ucm) DC 2 V
Technical data
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