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6ES7231-5PF32-0XB0
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6ES7231-5PF32-0XB0

New product

Siemens 6ES7231-5PF32-0XB0

SIMATIC S7-1200, Analog input, SM 1231 RTD, 8xAI RTD module

General information
Product type designation SM 1231, AI 8x16 bit RTD
Supply voltage
Rated value (DC) 24 V
Input current
Current consumption, typ. 40 mA
from backplane bus 5 V DC, typ. 80 mA
Power loss
Power loss, typ. 1.5 W
Analog inputs
Number of analog inputs 8; Resistance thermometer
permissible input voltage for voltage input (destruction limit), max. ±35 V
Technical unit for temperature measurement adjustable Degrees Celsius/degrees Fahrenheit
Input ranges
● Voltage No
● Current No
● Thermocouple No
● Resistance thermometer Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000
● Resistance Yes; 150 Ω, 300 Ω, 600 Ω
Input ranges (rated values), resistance thermometer
● Cu 10 Yes
— Input resistance (Cu 10) 10 Ω
● Ni 100 Yes
— Input resistance (Ni 100) 100 Ω
● Ni 1000 Yes
— Input resistance (Ni 1000) 1 000 Ω
● LG-Ni 1000 Yes
— Input resistance (LG-Ni 1000) 1 000 Ω
● Ni 120 Yes
— Input resistance (Ni 120) 120 Ω
● Ni 200 Yes
— Input resistance (Ni 200) 200 Ω
● Ni 500 Yes
— Input resistance (Ni 500) 500 Ω
● Pt 100 Yes
— Input resistance (Pt 100) 100 Ω
● Pt 1000 Yes
— Input resistance (Pt 1000) 1 000 Ω
● Pt 200 Yes
— Input resistance (Pt 200) 200 Ω
● Pt 500 Yes
— Input resistance (Pt 500) 500 Ω
Input ranges (rated values), resistors
● 0 to 150 ohms Yes
● 0 to 300 ohms Yes
● 0 to 600 ohms Yes
Thermocouple (TC)
Temperature compensation
— parameterizable No
Analog value generation for the inputs
Measurement principle integrating
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max. 15 bit; + sign
● Integration time, parameterizable No
● Interference voltage suppression for interference frequency f1 in Hz 85 dB at 50 / 60 / 400 Hz
Errors/accuracies
Temperature error (relative to input range), (+/-) 25 °C ±0.1%, to 55 °C ±0.2% total measurement range
Repeat accuracy in steady state at 25 °C (relative to output range), (+/-) 0.05 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
● Common mode interference, min. 120 dB
Interrupts/diagnostics/status information
Alarms Yes
Diagnostics function Yes; Can be read out
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

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