$ 114.36
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.
| 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 | |
