SIMATIC S7-1200 – SB 1231 TC – Siemens Signal/ Communication Boards

$ 109.39

SKU: 6ES7231-5QA30-0XB0

The SB 1231 thermocouple signal board permits temperature recording with high precision using established thermocouples. In addition, low level analog signals in the ±80 mV range can be recorded. The SB 1231 thermocouple signal board can be plugged directly into all SIMATIC S7-1200 CPUs.

Siemens Signal Boards S7-1200 Product Specifications:

Article number 6ES7231-5QA30-0XB0
Signal Board SB 1231 TC, 1 AI
General information
Product type designation SB 1231, AI 1×16 bit TC
Supply voltage
Rated value (DC) 24 V
Input current
Current consumption, typ. 5 mA
from backplane bus 5 V DC, typ. 20 mA
Power loss
Power loss, typ. 0.5 W
Analog inputs
Number of analog inputs 1; Thermocouples
permissible input voltage for current input (destruction limit), max. ±35 V
permissible input voltage for voltage input (destruction limit), max. ±35 V
Technical unit for temperature measurement adjustable Degrees Celsius/degrees Fahrenheit
Input ranges
● Voltage Yes
● Current No
● Thermocouple Yes; J, K, T, E, R & S, B, N, C, TXK/XK(L); voltage range: ±80 mV
● Resistance thermometer No
● Resistance No
Input ranges (rated values), voltages
● -80 mV to +80 mV Yes
— Input resistance (-80 mV to +80 mV) ≥1 MOhm
Input ranges (rated values), thermocouples
● Type J Yes
— Input resistance (type J) 1 200 °C
● Type K Yes
— Input resistance (Type K) 1 372 °C
Thermocouple (TC)
Temperature compensation
— parameterizable No
Analog outputs
Number of analog outputs 0
Cable length
● shielded, max. 100 m; shielded, twisted pair
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 10 / 50 / 60 / 400 Hz
Smoothing of measured values
● parameterizable Yes
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), (+/-) 0.5 %
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
● Wire-break Yes
Diagnostics indication LED
● for status of the inputs Yes
● for maintenance Yes
Standards, approvals, certificates
CE mark Yes
CSA approval Yes
UL approval Yes
cULus Yes
FM approval Yes
RCM (formerly C-TICK) Yes
KC approval Yes
Marine approval Yes
Ambient conditions
Free fall
● Fall height, max. 0.3 m; five times, in product package
Ambient temperature during operation
● min. -20 °C
● max. 60 °C
● horizontal installation, min. -20 °C
● horizontal installation, max. 60 °C
● vertical installation, min. -20 °C
● vertical installation, max. 50 °C
Ambient temperature during storage/transportation
● min. -40 °C
● max. 70 °C
Air pressure acc. to IEC 60068-2-13
● Operation, min. 795 hPa
● Operation, max. 1 080 hPa
● Storage/transport, min. 660 hPa
● Storage/transport, max. 1 080 hPa
Relative humidity
● Operation at 25 ℃ without condensation, max. 95 %
Pollutant concentrations
● SO2 at RH < 60% without condensation S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free
connection method / header
required front connector Yes
Mechanics/material
Enclosure material (front)
● Plastic Yes
Dimensions
Width 38 mm
Height 62 mm
Depth 21 mm
Weights
Weight, approx. 35 g
Weight 0.031 kg
Dimensions 5.0 × 8.0 × 2.9 cm

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