Siemens SIMATIC ET 200SP Fail-safe Analog Input Module F-AI 4xI (0)4..20mA HF, 4 Channels, 16-bit, SIL 3, PL e, 20mm Width, 6ES7136-6AA00-0CA1

The Siemens SIMATIC ET 200SP F-AI 4xI (0)4..20mA HF is a fail-safe analog input module engineered for safety-critical current measurement in distributed automation systems. It delivers four high-feature channels with 16-bit resolution and supports 0 to 20 mA and 4 to 20 mA signal ranges, achieving up to SIL 3 (IEC 61508) and PL e (ISO 13849-1) for demanding process safety applications.

Advantages

This module integrates seamlessly into the ET 200SP distributed I/O system, providing reliable acquisition of analog current signals from sensors such as pressure transmitters or level probes. Its fail-safe design ensures safe state detection and diagnostics, reducing risk in safety loops. The compact 20 mm housing saves space on the DIN rail, while the high feature set includes wire break, short circuit, and range monitoring for enhanced operational transparency.

Suitable for

• Safety instrumented systems requiring SIL 3 / PL e analog input
• Process automation with 4-20 mA current loop sensors
• Distributed control architectures using SIMATIC ET 200SP stations
• Applications demanding high-resolution (16-bit) and high-accuracy (±0.3%) measurements

Key specifications

• Module type: Fail-safe analog input module
• Number of inputs: 4
• Input signal type: Current (0 to 20 mA, 4 to 20 mA)
• Resolution: 16 bit
• Basic accuracy: ±0.3% (20 mA range)
• Safety integrity: SIL 3 (IEC 61508), PL e (ISO 13849-1)
• Supply voltage: 24 V DC via backplane bus
• Power consumption: 0.8 W
• Operating temperature: 0 °C to 60 °C (horizontal installation)
• Required BaseUnit: Type A0 or A1
• Module width: 20 mm

Recommendations

For safety-related analog input tasks in the ET 200SP platform, this module offers a proven combination of high resolution, diagnostics, and certified safety integrity. It is an excellent choice for upgrading or expanding fail-safe automation systems.