SIMATIC S7-1200 – SM 1231 RTD Signal Modules – Siemens

$ 461.15 – $ 1,095.95

SKU: N/A

The SM 1231 RTD modules enable temperatures to be measured with high precision using established resistance temperature detectors.

Siemens Modules S7-1200 Product Specifications:

Article number 6ES7231-5PD32-0XB0 6ES7231-5PF32-0XB0
S7-1200, analog Input SM 1231 RTD, 4 AI S7-1200, analog Input SM 1231 RTD, 8 AI
General information
Product type designation SM 1231, AI 4×16 bit RTD SM 1231, AI 8×16 bit RTD
Supply voltage
Rated value (DC) 24 V 24 V
Input current
Current consumption, typ. 40 mA 40 mA
from backplane bus 5 V DC, typ. 80 mA 80 mA
Power loss
Power loss, typ. 1.5 W 1.5 W
Analog inputs
Number of analog inputs 4; Resistance thermometer 8; Resistance thermometer
permissible input voltage for voltage input (destruction limit), max. ±35 V ±35 V
Technical unit for temperature measurement adjustable Degrees Celsius/degrees Fahrenheit Degrees Celsius/degrees Fahrenheit
Input ranges
● Voltage No No
● Current No No
● Thermocouple No No
● Resistance thermometer Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 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 Yes; 150 Ω, 300 Ω, 600 Ω
Input ranges (rated values), resistance thermometer
● Cu 10 Yes Yes
— Input resistance (Cu 10) 10 Ω 10 Ω
● Ni 100 Yes Yes
— Input resistance (Ni 100) 100 Ω 100 Ω
● Ni 1000 Yes Yes
— Input resistance (Ni 1000) 1 000 Ω 1 000 Ω
● LG-Ni 1000 Yes Yes
— Input resistance (LG-Ni 1000) 1 000 Ω 1 000 Ω
● Ni 120 Yes Yes
— Input resistance (Ni 120) 120 Ω 120 Ω
● Ni 200 Yes Yes
— Input resistance (Ni 200) 200 Ω 200 Ω
● Ni 500 Yes Yes
— Input resistance (Ni 500) 500 Ω 500 Ω
● Pt 100 Yes Yes
— Input resistance (Pt 100) 100 Ω 100 Ω
● Pt 1000 Yes Yes
— Input resistance (Pt 1000) 1 000 Ω 1 000 Ω
● Pt 200 Yes Yes
— Input resistance (Pt 200) 200 Ω 200 Ω
● Pt 500 Yes Yes
— Input resistance (Pt 500) 500 Ω 500 Ω
Input ranges (rated values), resistors
● 0 to 150 ohms Yes Yes
● 0 to 300 ohms Yes Yes
● 0 to 600 ohms Yes Yes
Thermocouple (TC)
Temperature compensation
— parameterizable No No
Analog value generation for the inputs
Measurement principle integrating integrating
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max. 15 bit; + sign 15 bit; + sign
● Integration time, parameterizable No No
● Interference voltage suppression for interference frequency f1 in Hz 85 dB at 50 / 60 / 400 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 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 % 0.05 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
● Common mode interference, min. 120 dB 120 dB
Interrupts/diagnostics/status information
Alarms Yes Yes
Diagnostics function Yes; Can be read out Yes; Can be read out
Alarms
● Diagnostic alarm Yes Yes
Diagnoses
● Monitoring the supply voltage Yes Yes
● Wire-break Yes Yes
Diagnostics indication LED
● for status of the inputs Yes Yes
● for maintenance Yes Yes
Degree and class of protection
IP degree of protection IP20 IP20
Standards, approvals, certificates
CE mark Yes Yes
CSA approval Yes Yes
UL approval Yes Yes
cULus Yes Yes
FM approval Yes Yes
RCM (formerly C-TICK) Yes Yes
KC approval Yes Yes
Marine approval Yes Yes
Ambient conditions
Free fall
● Fall height, max. 0.3 m; five times, in product package 0.3 m; five times, in product package
Ambient temperature during operation
● min. -20 °C -20 °C
● max. 60 °C 60 °C
● horizontal installation, min. -20 °C -20 °C
● horizontal installation, max. 60 °C 60 °C
● vertical installation, min. -20 °C -20 °C
● vertical installation, max. 50 °C 50 °C
Ambient temperature during storage/transportation
● min. -40 °C -40 °C
● max. 70 °C 70 °C
Air pressure acc. to IEC 60068-2-13
● Operation, min. 795 hPa 795 hPa
● Operation, max. 1 080 hPa 1 080 hPa
● Storage/transport, min. 660 hPa 660 hPa
● Storage/transport, max. 1 080 hPa 1 080 hPa
Relative humidity
● Operation at 25 ℃ without condensation, max. 95 % 95 %
Pollutant concentrations
● SO2 at RH < 60% without condensation S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free
connection method / header
required front connector Yes Yes
Mechanics/material
Enclosure material (front)
● Plastic Yes Yes
Dimensions
Width 45 mm 70 mm
Height 100 mm 100 mm
Depth 75 mm 75 mm
Weights
Weight, approx. 220 g 220 g
Weight N/A
Dimensions N/A

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