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Siemens 6ES7231-5PB50-0XB0
SIMATIC S7-1200 G2, SB 1231 RTD, AI 2x RTD, Pt100 and Pt1000
- MPN
- 6ES7231-5PB50-0XB0
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- 12-month warranty (new) · 3-month (used/refurbished)
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What is the Siemens 6ES7231-5PB50-0XB0?
SIMATIC S7-1200 G2, SB 1231 RTD, AI 2x RTD, Pt100 and Pt1000
Specifications
General information
| Product type designation | SB 1231, AI 2x 16-bit RTD |
Input current
| from backplane bus 5 V DC, typ. | 20 mA |
Power loss
| Power loss, typ. | 0.1 W |
Analog inputs
| Number of analog inputs | 2; 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 |
| Input ranges — Current | No |
| Input ranges — Thermocouple | No |
| Input ranges — Resistance thermometer | Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Input ranges — Resistance | Yes; 150 Ω, 300 Ω, 600 Ω |
| Input ranges (rated values), resistance thermometer — Cu 10 | Yes |
| Input ranges (rated values), resistance thermometer — Cu 10 — Input resistance (Cu 10) | 10 Ω |
| Input ranges (rated values), resistance thermometer — Ni 100 | Yes |
| Input ranges (rated values), resistance thermometer — Ni 100 — Input resistance (Ni 100) | 100 Ω |
| Input ranges (rated values), resistance thermometer — Ni 1000 | Yes |
| Input ranges (rated values), resistance thermometer — Ni 1000 — Input resistance (Ni 1000) | 1 000 Ω |
| Input ranges (rated values), resistance thermometer — LG-Ni 1000 | Yes |
| Input ranges (rated values), resistance thermometer — LG-Ni 1000 — Input resistance (LG-Ni 1000) | 1 000 Ω |
| Input ranges (rated values), resistance thermometer — Ni 120 | Yes |
| Input ranges (rated values), resistance thermometer — Ni 120 — Input resistance (Ni 120) | 120 Ω |
| Input ranges (rated values), resistance thermometer — Ni 200 | Yes |
| Input ranges (rated values), resistance thermometer — Ni 200 — Input resistance (Ni 200) | 200 Ω |
| Input ranges (rated values), resistance thermometer — Ni 500 | Yes |
| Input ranges (rated values), resistance thermometer — Ni 500 — Input resistance (Ni 500) | 500 Ω |
| Input ranges (rated values), resistance thermometer — Pt 100 | Yes |
| Input ranges (rated values), resistance thermometer — Pt 100 — Input resistance (Pt 100) | 100 Ω |
| Input ranges (rated values), resistance thermometer — Pt 1000 | Yes |
| Input ranges (rated values), resistance thermometer — Pt 1000 — Input resistance (Pt 1000) | 1 000 Ω |
| Input ranges (rated values), resistance thermometer — Pt 200 | Yes |
| Input ranges (rated values), resistance thermometer — Pt 200 — Input resistance (Pt 200) | 200 Ω |
| Input ranges (rated values), resistance thermometer — Pt 500 | Yes |
| Input ranges (rated values), resistance thermometer — Pt 500 — Input resistance (Pt 500) | 500 Ω |
| Input ranges (rated values), resistors — 0 to 150 ohms | Yes |
| Input ranges (rated values), resistors — 0 to 300 ohms | Yes |
| Input ranges (rated values), resistors — 0 to 600 ohms | Yes |
| Cable length — shielded, max. | 100 m; to the sensor |
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 and conversion time/resolution per channel — Integration time, parameterizable | Yes |
| Integration and conversion time/resolution per channel — Interference voltage suppression for interference frequency f1 in Hz | 85 dB at 10 / 50 / 60 / 400 Hz |
| Smoothing of measured values — Parameterizable | Yes |
| Smoothing of measured values — Step: None | Yes |
| Smoothing of measured values — Step: low | Yes |
| Smoothing of measured values — Step: Medium | Yes |
| Smoothing of measured values — Step: High | Yes |
Errors/accuracies
| Temperature error (relative to input range), (+/-) | 25 °C ±0.1 % / -20 °C to 60 °C ±0.2 % of the full-scale deflection |
| Repeat accuracy in steady state at 25 °C (relative to input 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 — Wire break | Yes |
| Diagnostics indication LED — DIAG LED | Yes |
| Diagnostics indication LED — for status of the inputs | Yes |
Isolation
| Isolation tested with | 707 V DC (type test) |
| tested with — Between channels | 120 V AC |
Degree and class of protection
| IP degree of protection | IP20 |
Standards, approvals, certificates
| CE mark | Yes |
| CSA approval | No |
| UL approval | Yes |
| cULus | Yes |
| FM approval | No |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| Marine approval | No |
Ambient conditions
| Free fall — Fall height, max. | 0.3 m; five times, in product package |
| Ambient temperature during operation — horizontal installation, min. | -20 °C |
| Ambient temperature during operation — horizontal installation, max. | 60 °C; at max. voltages and max. specification |
| Ambient temperature during operation — vertical installation, min. | -20 °C |
| Ambient temperature during operation — vertical installation, max. | 50 °C; at max. voltages and max. specification |
| Ambient temperature during storage/transportation — min. | -40 °C |
| Ambient temperature during storage/transportation — max. | 70 °C |
| Air pressure acc. to IEC 60068-2-13 — Operation, min. | 540 hPa |
| Air pressure acc. to IEC 60068-2-13 — Operation, max. | 1 140 hPa |
| Air pressure acc. to IEC 60068-2-13 — Storage/transport, min. | 540 hPa |
| Air pressure acc. to IEC 60068-2-13 — Storage/transport, max. | 1 140 hPa |
| Altitude during operation relating to sea level — Installation altitude, min. | -1 000 m |
| Altitude during operation relating to sea level — Installation altitude, max. | 5 000 m; Restrictions for installation altitudes > 2 000 m, see manual |
| Relative humidity — Operation, max. | 95 %; no condensation |
| Vibrations — Vibration resistance during operation acc. to IEC 60068-2-6 | 3.5 mm from 5 - 8.4 Hz, 1g from 8.4 - 150 Hz |
| Vibrations — Operation, tested according to IEC 60068-2-6 | Yes |
| Shock testing — tested according to IEC 60068-2-27 | Yes; IEC 68, Part 2-27; half-sine, 15 g, 11 ms |
| Pollutant concentrations — SO2 at RH < 60% without condensation | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free |
Connection method
| required front connector | Yes |
Mechanics/material
| Enclosure material (front) — plastic | Yes |
Dimensions
| Width | 15 mm |
| Height | 62 mm |
| Depth | 63 mm |
Weights
| Weight, approx. | 29 g |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
6ES7231-5PB50-0XB0: frequently asked questions
When can 6ES7231-5PB50-0XB0 be shipped?
6ES7231-5PB50-0XB0 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 6ES7231-5PB50-0XB0 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 6ES7231-5PB50-0XB0 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 6ES7231-5PB50-0XB0, subject to availability and destination.
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