Siemens 6ES7131-4BD01-0AA0 SIMATIC ET 200S 4DI DC24V Standard Input Module

Overview

SIEMENS SIMATIC ET 200S

6ES7131-4BD01-0AA0 SIMATIC ET 200S 4DI DC24V Standard Input Module

A 15 mm standard input module with four 24 V DC channels, sensor supply and individual green status LEDs.

At a Glance

Brand	Siemens
Model	6ES7131-4BD01-0AA0
Product Type	Digital input module
Core Function	Discrete sensor acquisition
Application	ET 200S switch and proximity-sensor circuits

Four sensor channels

Connect switches or compatible proximity sensors to four standard 24 V DC input channels.

Packed address option

Use four input bits with packing or one input byte without packing.

Terminal-base selection

Choose a compatible 15 mm TM-E base to obtain the numbered, sensor-supply and AUX1 positions needed by the circuit.

Product Overview

6ES7131-4BD01-0AA0 acquires four discrete 24 V DC signals in a SIMATIC ET 200S station.

The standard input electronics suit switches and proximity sensors, with a fixed input filter and a green state indicator on each channel.

Ordering focus: Match the sensor type, input thresholds and TM-E terminal assignment, then retain the chosen packed or unpacked process-image allocation in the station configuration.

Key Functions

Acquire field switch states

Four input channels detect the signal levels produced by switches and compatible proximity sensors.

Feed connected sensors

The sensor supply provides up to 500 mA with a loaded output voltage of at least L+ minus 0.5 V.

Show active input channels

A green LED for each channel displays its input state, while optional address packing reduces the input allocation to four bits.

Official Specifications

Digital input channels	4
Rated supply and input voltage	24 V DC; module supply from the power module
Backplane current consumption	Maximum 10 mA from the 3.3 V DC bus
Sensor supply output	Up to 500 mA; output at least L+ − 0.5 V under load
Typical power dissipation	0.7 W
Input process-image allocation	1 byte without packing; 4 bits with packing
Parameter length	1 byte
Input characteristic	IEC 61131 Type 1
Input signal thresholds	Signal 0: −30 to +5 V; signal 1: +15 to +30 V
Typical signal-1 input current	7 mA at 24 V
Input delay on either signal edge	2–4.5 ms; typically 3 ms; not parameterizable
Maximum shielded cable length	1000 m
Maximum unshielded cable length	600 m
Two-wire sensor quiescent current	Maximum 1.5 mA
Input electrical isolation	No isolation between channels; isolated from the backplane bus
Permissible circuit potential difference	75 V DC or 60 V AC
Insulation test voltage	500 V DC
Input indication and diagnostics	Green status LED per channel; no diagnostic function
Module width and approximate weight	15 mm; 35 g
Vertical installation ambient range	0–55 °C

Official source:Siemens 4DI DC24V ST module manual · Siemens product data sheet

Frequently Asked Questions

Can 6ES7131-4BD01-0AA0 accept a two-wire proximity switch with 2 mA off-state current?

No, the permitted quiescent current for a two-wire sensor is limited to 1.5 mA.

Can I adjust the input filter on 6ES7131-4BD01-0AA0 for faster pulses?

No, the standard input delay is not parameterizable and is typically 3 ms within a 2–4.5 ms range on both edges.

How much sensor current can 6ES7131-4BD01-0AA0 provide?

The sensor supply output is rated up to 500 mA and remains at least L+ minus 0.5 V under load.

Which input levels will 6ES7131-4BD01-0AA0 recognize as on and off?

A signal from +15 to +30 V is recognized as 1, while −30 to +5 V corresponds to 0.

Can I reduce the process-image allocation of 6ES7131-4BD01-0AA0 below one byte?

Yes, the packing option uses four input bits instead of one byte per module.

Are the four channels of 6ES7131-4BD01-0AA0 isolated from each other?

No, the channels are not individually isolated, although they are electrically isolated from the backplane bus.

What does a lit green channel LED on 6ES7131-4BD01-0AA0 indicate?

It indicates that the corresponding digital input channel is active.

Compatibility & Ordering Notes

Before ordering 6ES7131-4BD01-0AA0: Pair the four-channel standard module with a compatible 15 mm TM-E base, preserve its sensor-supply and input terminal assignment and match the configured packing arrangement.

Compatibility Checklist for 6ES7131-4BD01-0AA0

• Use compatible 24 V DC switches or proximity sensors.
• Keep two-wire sensor quiescent current within 1.5 mA.
• Select the TM-E base that exposes the required supply and AUX1 terminals.
• Retain the four-bit packed or one-byte unpacked address arrangement.

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