6ES7531-7KF00-0AB0 – SIMATIC S7-1500 Analog Input Module AI 8xU/I/RTD/TC ST
High-density 8-channel analog input for voltage, current, RTD, and thermocouple. 16-bit resolution, 0.3% accuracy. Supports TC types B, E, J, K, N, R, S, T and Pt/Ni RTDs. Designed for rugged industrial automation. Part of Siemens S7-1500 portfolio.
Technical Specifications
| Brand | Siemens |
| Model | 6ES7531-7KF00-0AB0 |
| Series | SIMATIC S7-1500 |
| Type | Analog Input Module AI 8xU/I/RTD/TC ST |
| Resolution | 16 bit with overrange |
| Accuracy | 0.3% operational error limit (overall temp range) |
| Channels | 8 (group of 8), 4 channels for RTD |
| Input ranges (V) | ±10V, ±5V, ±2.5V, ±1V, ±250mV, ±80mV, 1..5V |
| Input ranges (mA) | 0..20mA, 4..20mA, ±20mA |
| RTD support | Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000, LG-Ni1000 (standard/climate) |
| Thermocouple types | B, E, J, K, N, R, S, T |
| Integration time (ms) | 2.5 / 16.67 / 20 / 100 (parameterizable) |
| Common mode voltage | 10 V DC (UCM between inputs and MANA) |
| Supply voltage | 24V DC (20.4 .. 28.8V), reverse polarity protected |
| Power loss | typ. 2.7 W |
| Operating temp (horizontal) | 0 °C to 60 °C |
| Storage temp | -40 °C to +70 °C (typical) |
| Dimensions (W x H x D) | 35 x 147 x 129 mm |
| Weight | approx. 310 g |
Installation & Wiring
- Mounting: S7-1500 rail (horizontal or vertical). Use shield bracket and shield terminal included.
- Connection: 2-wire, 3-wire, or 4-wire for RTD. 2-wire or 4-wire for current transmitters.
- Max cable length: 800 m (U/I), 200 m (R/RTD), 50 m (TC) – shielded.
- Encoder supply: 24V / 20 mA per channel (47 mA for <10s), short-circuit protected.
- Reverse polarity protection on supply input.
Diagnostics & Interrupts
- Diagnostic alarm and limit value alarm (2 upper + 2 lower).
- Wire-break detection for 1..5V, 4..20mA, TC, R, RTD.
- Overflow/underflow monitoring.
- LED indicators: RUN, ERROR, PWR, channel status, channel diagnostics.
- Common mode interference rejection: min. 60 dB.
- Series mode interference rejection: min. 40 dB.
Compatibility & Engineering
- TIA Portal configurable from V12 / V12.
- STEP 7 V5.5 SP3 and above.
- PROFINET GSD V2.3; PROFIBUS GSD V1.0 / V5.1.
- Supports MSI (multi‑channel signal interrelation).
- Reparameterization and calibration possible during RUN.
- Firmware updateable (V2.0.0, FW update yes).
Environmental & Certifications
- Operational temperature: 0..60 °C (horizontal), 0..40 °C (vertical).
- Isolation tested with 707 V DC (type test).
- Potential separation: channels to backplane bus and power supply.
- RoHS compliant, CE marked (standard for Siemens industrial products).
- Protection class: IP20 (suitable for control cabinet).
Typical Applications
- Process monitoring (temperature, pressure, flow) with RTD/TC.
- Analog signal acquisition from transmitters (4..20mA, 0..10V).
- High-precision resistance measurement (Pt100, Ni1000).
- Industrial furnace control, HVAC, and energy management.
- Replacement or upgrade in existing S7-1500 systems.
FAQ – Quick Answers
- Can I mix RTD and TC on same module? Yes, but only 4 channels for RTD; TC on all 8.
- What is the resolution? 16 bit with sign, overrange included.
- Does it support 2-wire RTD? Yes, only for PTC; for other RTD use 3-wire or 4-wire.
- Is temperature compensation internal? Yes, internal and external via RTD.
- Can I replace this module during RUN? Yes, reparameterization is supported.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment – FedEx, UPS, DHL available.
- Tested surplus / refurbished options with full function check.
- 12-month warranty on all products.
- Technical verification before shipment by our engineers.
- Support for obsolete control systems and legacy hardware.
Shipping: We ship worldwide via FedEx, UPS, or DHL. Tracking provided.
Packaging: Original anti-static packaging with ESD protection. Includes shield bracket and shield terminal.
Warranty: 12 months against manufacturing defects. Conditions apply.
Contact us:
info@oiltechcontrols.com |
+86 158 8020 0923 (WhatsApp)
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Original Source: https://www.oiltechcontrols.com/
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