Chapter 2 Analog input modules Manual VIPA System 200V
2-58 HB97E - SM-AIO - Rev. 12/32
Order number 231-1FD00
Type SM 231
Current consumption/power loss
Current consumption from backplane bus 300 mA
Power loss 1.5 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) 10 MΩ
Input voltage ranges -400 mV ... +400 mV
-4 V ... +4 V
-10 V ... +10 V
Operational limit of voltage ranges +/-0.2% ... +/-0.4%
Basic error limit voltage ranges with SFU +/-0.1% ... +/-0.3%
Current inputs
9
Max. input resistance (current range) 57 Ω
Input current ranges +4 mA ... +20 mA
-20 mA ... +20 mA
Operational limit of current ranges +/-0.2% ... +/-0.5%
Basic error limit current ranges with SFU +/-0.1% ... +/-0.3%
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 16
Measurement principle successive approximation
Basic conversion time 0.2 ms/channel
Noise suppression for frequency -
Initial data size 8 Byte
Status information, alarms, diagnostics
Status display none
Interrupts yes
Process alarm yes, parameterizable
Diagnostic interrupt yes, parameterizable
Diagnostic functions yes
Diagnostics information read-out possible
Supply voltage display none
Group error display none
Channel error display red LED per channel
Isolation
Between channels -
Between channels of groups to -
Between channels and backplane bus
9
Technical data
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