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6ES7231-5ND32-0XB0

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Siemens 6ES7231-5ND32-0XB0

SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, +/-1.25 or 0-20 mA/4-20 mA, 15 bit+sign bit

General information
Product type designation		SM 1231, AI 4x16 bit
Supply voltage
Rated value (DC)		24 V
Input current
Current consumption, typ.		65 mA
from backplane bus 5 V DC, typ.		80 mA
Power loss
Power loss, typ.		1.8 W
Analog inputs
Number of analog inputs		4; Current or voltage differential inputs
permissible input voltage for voltage input (destruction limit), max.		±35 V
permissible input current for current input (destruction limit), max.		40 mA
Cycle time (all channels) max.		100 µs
Input ranges
● Voltage		Yes; ±10V, ±5V, ±2.5V or ±1.25V
● Current		Yes; 4 to 20 mA, 0 to 20 mA
● Thermocouple		No
● Resistance thermometer		No
● Resistance		No
Input ranges (rated values), voltages
● -1.25 V to +1.25 V		Yes
● -10 V to +10 V		Yes
— Input resistance (-10 V to +10 V)		≥1 MOhm
● -2.5 V to +2.5 V		Yes
— Input resistance (-2.5 V to +2.5 V)		≥1 MOhm
● -5 V to +5 V		Yes
— Input resistance (-5 V to +5 V)		≥1 MOhm
Input ranges (rated values), currents
● 0 to 20 mA		Yes
● 4 mA to 20 mA		Yes
Analog value generation for the inputs
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max.		15 bit; + sign
● Integration time, parameterizable		Yes
● Interference voltage suppression for interference frequency f1 in Hz		40 dB, DC to 60 V for interference frequency 50 / 60 Hz
Smoothing of measured values
● parameterizable		Yes
● Step: None		Yes
● Step: low		Yes
● Step: Medium		Yes
● Step: High		Yes
Errors/accuracies
Temperature error (relative to input range), (+/-)		25 °C ±0.1% / ±0.3% total measurement range
Basic error limit (operational limit at 25 °C)
● Voltage, relative to input range, (+/-)		0.1 %
● Current, relative to input range, (+/-)		0.1 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
● Common mode voltage, max.		12 V
Interrupts/diagnostics/status information
Alarms		Yes
Diagnostics function		Yes
Alarms
● Diagnostic alarm		Yes
Diagnoses
● Monitoring the supply voltage		Yes
● Wire-break		Yes
Diagnostics indication LED
● for status of the inputs		Yes
● for maintenance		Yes
Degree and class of protection
IP degree of protection		IP20