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Siemens 6ES7131-4BB01-0AA0

The Siemens 6ES7131-4BB01-0AA0 is a 24V DC digital input architecture. Rayon Automation offers the model in stock as a supplier. It features typical 0.4W low-power consumption control and a compact design with only 15mm width. In a compact control cabinet, it demonstrates unparalleled wiring flexibility and heat dissipation stability, enhancing the continuous operation time of the entire production line.

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Product Description

As a high-quality industrial control component supplier in China, we offer an industrial-grade original Siemens product system. The Siemens 6ES7131-4BB01-0AA0 digital input module is specifically designed for the SIMATIC ET 200S distributed I/O system and can achieve high-speed seamless connection of 2 channels of standard signals. It has high electromagnetic compatibility and anti-interference protection capabilities, strong hardware compatibility, and provides comprehensive, long-lasting and cost-effective signal acquisition support for industrial automation upgrades.

Product core features

Standard 4-channel 24V DC signal input: Each channel independently supports PNP (Source) wiring type, with the rated input voltage being 24V DC. The standard input current usually remains at around 3.7 mA, enabling the determination of the on-site switch status.

Hardware level photoelectric isolation protection: Siemens 6ES7131-4BB01-0AA0 has 500V AC electrical isolation protection between the internal circuit and the backplane bus.

Support hot plugging and live maintenance: Under the support of ET 200S interface module and backplane, the operator can directly unplug and replace the module in the system without continuous power.

Built-in anti-interference RC filter and status indication: built-in 3ms hardware signal filter circuit at the channel input eliminates signal misjudgment caused by mechanical contact jitter; The panel integrates 4 green LED indicators, which can be used for real-time intuitive state signal input.

Parameters

Parameter	Value / Specification
Product Model	6ES7131-4BB01-0AA0
Product Line	SIMATIC DP, ET 200S
Number of Channels	4 Digital Input Channels (4 DI)
Rated Input Voltage	24 V DC (Range: 20.4 V DC – 28.8 V DC)
Input Characteristics	Compliant with IEC 61131-2, Type 1 Standard
Input Current (State “1”)	Typ. 3.7 mA
Signal Delay (0 → 1 / 1 → 0)	2.0 ms – 4.5 ms (Typ. 3.0 ms)
Isolation Performance	Channel to Backplane Bus: 500 V AC / 707 V DC Continuous Isolation
Backplane Bus Current Consumption	Typ. 10 mA (drawn from backplane bus)
Module Power Consumption	Typ. 0.7 W
Dimensions (W × H × D)	15 mm × 81 mm × 52 mm
Weight (per unit)	Approx. 35 g

Operating performance and performance testing

High-frequency response stability: Under a 100Hz pulse input signal, Siemens 6ES7131-4BB01-0AA0 can accurately capture state switching, and there is no obvious drift in the response time of the rising and falling edges of the signal.

Thermal stability and low power consumption: under the condition of full load and continuous input of 24V DC in 4 channels, the surface temperature rise of the shell does not exceed 8℃ after 48 hours of operation.

Anti-common-mode interference capability:In an industrial environment simulating the electromagnetic field generated by a high-frequency frequency converter, there are no erroneous actions or data loss phenomena, ensuring the reliability of continuous production line operation.

Our quality

All the models we offer comply with international standards. The modules themselves bear the CE, UL, RoHS and UKCA certification marks, which can be clearly seen inside the modules. The company has a quality control system and every batch is imported in its original form.

FAQ：

Does the module include terminal base?

The modules of Siemens ET 200S system and the terminal bases are sold separately. If you need the matching base, you will need to make an additional purchase.

If the old module in the field is damaged, does it require re-downloading of the PLC program to directly replace the new module?

The 6ES7131-4BB01-0AA0 pure hardware digital input module does not save user programs. After replacing the module with the same order number, the backplane bus will automatically recognize and restore channel communication, achieving plug-and-play.

What does the red light on the module panel SF indicate?

When the SF (System Fault) light is on, it usually indicates that the backplane bus communication between the module and the interface module is interrupted, the module is not fully inserted into the base, or there is a power failure in the front-end power supply module (PM-E).