$ 393.30 – $ 642.62
The SM 1231 thermocouple modules enable temperatures to be measured with high precision using established thermocouples. In addition, low level analog signals in the ±80 mV range can be recorded. The SM 1231 thermocouple modules can be used with the CPUs of the S7-1200 series.
Article number | 6ES7231-5QD32-0XB0 | 6ES7231-5QF32-0XB0 |
S7-1200, analog Input SM 1231 TC, 4 AI | S7-1200, analog Input SM 1231 TC, 8 AI | |
General information | ||
Product type designation | SM 1231, AI 4×16 bit TC | SM 1231, AI 8×16 bit TC |
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; Thermocouples | 8; Thermocouples |
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 | Yes | Yes |
● Current | No | No |
● Thermocouple | Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: ±80 mV | Yes; J, K, T, E, R & S, B, N, C, TXK/XK(L); voltage range: ±80 mV |
● Resistance thermometer | No | No |
● Resistance | No | No |
Input ranges (rated values), voltages | ||
● -80 mV to +80 mV | Yes | Yes |
— Input resistance (-80 mV to +80 mV) | ≥1 MOhm | ≥1 MOhm |
Input ranges (rated values), thermocouples | ||
● Type B | Yes | Yes |
● Type C | Yes | Yes |
● Type E | Yes | Yes |
● Type J | Yes | Yes |
● Type K | Yes | Yes |
● Type N | Yes | Yes |
● Type R | Yes | Yes |
● Type S | Yes | Yes |
● Type T | Yes | Yes |
● Type TXK/TXK(L) to GOST | 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 |
Smoothing of measured values | ||
● parameterizable | Yes | Yes |
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), (+/-) | 0.5 % | 0.5 % |
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 | 45 mm |
Height | 100 mm | 100 mm |
Depth | 75 mm | 75 mm |
Weights | ||
Weight, approx. | 180 g | 220 g |
Weight | N/A |
---|---|
Dimensions | N/A |
INOSAKI Limited
RM B 5/F Gaylord Comm,
Bldg 114-118 Lockhart Rd.
Hong Kong
INOSAKI Sdn. Bhd.
2-1-9, Ground Floor, One Square, Tingkat Mahsuri 1,
11900 Bayan Lepas, Penan
INOSAKI Pte. Ltd.
101 Upper Cross Street,
No. 06-17, People’s Park Centre,
Singapore (058357)