BECKHOFF IP2311-B400 Fieldbus Box

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Manufacturer: BECKHOFF
Product No.: IP2311-B400
Country of origin:Germany
Product Type: Fieldbus Boxes
Payment: T/T, Western Union
Weight: 350g
Dimensions: 3 x 2 x 0.22 mm
Shipping port: Xiamen
Warranty: 12 months

Description

Designed for distributed machine-mount installations, the IP2311-B400 fieldbus box facilitates direct, cabinet-free connection of digital signals in rugged industrial environments. This compact I/O module integrates 4 digital inputs and 4 digital outputs, routing them through standard M8 screw-type connectors for secure wiring to local sensors and actuators. Operating at data transfer rates up to 500 kBaud, the unit handles communications over distances up to 400 meters between modules using specialized LiYCY cabling. The fieldbus interface is established via robust 9-pin M23 connectors, allowing reliable integration into decentralized control architectures. System configuration and diagnostics can be performed seamlessly using the KS2000 software interface.

Features

Cabinet-free, decentralized mounting with IP67-rated environmental protection.
Four digital inputs (24 V DC) featuring a built-in 0.2 ms hardware input filter.
Four short-circuit-proof digital outputs rated up to 0.5 A per channel.
Tough, glass-fiber reinforced polyamide (PA6) housing material for industrial durability.
Direct integration with fieldbus systems via dual 9-pin M23 connections (male and female).
Flexible parameter assignment and diagnostic capabilities supported by the KS2000 configuration tool.

Applications

Automotive assembly and conveyor lines.
Material handling and sorting automation.
Food processing and high-moisture packaging zones.
Heavy machinery and decentralized process control.

Technical Specifications

Manufacturer	BECKHOFF
Part Number / Model	IP2311-B400
Module Type	Fieldbus Box (Digital Input/Output)
Number of Channels	4 inputs + 4 outputs
Fieldbus Interface	1 x M23 female 9-pin, 1 x M23 male 9-pin
Data Transfer Rate	500 kBaud
Data Transfer Medium	LiYCY 3 x 2 x 0.22 mm² (max. 400 m length)
Input Filter Time	0.2 ms
"0" Signal Voltage Range	-3 to 5 V DC
"1" Signal Voltage Range	11 to 30 V DC (6 mA input current, EN 61131-2, type 2)
Sensor Power Supply	From control voltage, max. 0.5 A total (short-circuit proof)
Rated Load Voltage	24 V DC (-15% / +20%)
Max. Output Current	0.5 A per channel (individually short-circuit proof)
Control Voltage Power Supply	24 V DC (20 to 29 V DC)
Box Supply Current	85 mA + sensor current (max. 0.5 A)
Power Connections	Feed: 1 x M8 male 4-pin; Downstream: 1 x M8 female 4-pin
I/O Connections	M8, screw type
Housing Material	PA6 (polyamide)
Protection Rating	IP65 / IP66 / IP67 (conforms to EN 60529)
Operating Temperature	0 to 55 degC
Storage Temperature	-25 to 85 degC
Dimensions (W x H x D)	30 mm x 210 mm x 26.5 mm
Weight	approx. 350 g

Connections and Interfaces

Interface Type	Connector Style	Function
Fieldbus Input	M23 9-pin Male	Upstream fieldbus network connection
Fieldbus Output	M23 9-pin Female	Downstream fieldbus network connection
I/O Channels	M8 Screw Type	Direct connection for 4 sensors (inputs) and 4 actuators (outputs)
Power Feed	M8 4-pin Male	Incoming 24 V DC control and load power
Power Downstream	M8 4-pin Female	Loop-through power supply to adjacent modules

Installation Guidelines

Mount the module directly on flat machinery surfaces using the 2 pre-molded fixing holes (3.5 mm diameter, suitable for M3 screws).
Ensure all unused M8 and M23 connections are securely fitted with appropriate IP67 protection caps to prevent moisture ingress.
Maintain clear pathways for the fieldbus cabling to prevent tight bend radii and mechanical stress on the M23 connectors.
Verify that the total current draw of the sensors connected to the M8 ports does not exceed the maximum supply limit of 0.5 A.

Compliance and Certifications

CE Compliance
EMC Immunity: Conforms to EN 61000-6-2
EMC Emission: Conforms to EN 61000-6-4
Vibration Resistance: Conforms to EN 60068-2-6
Shock Resistance: Conforms to EN 60068-2-27

Key Features:

What is the primary function of the Beckhoff IP2311-B400?

The IP2311-B400 is a decentralized fieldbus box that interfaces 4 digital inputs and 4 digital outputs with a fieldbus network, enabling cabinet-free installation directly on machinery.

What is the maximum output current supported per channel?

Each of the 4 digital outputs supports a maximum current of 0.5 A, and all outputs are individually protected against short circuits.

Which software is used to configure this module?

Configuration, parameter assignment, and diagnostics for the IP2311-B400 can be executed using the Beckhoff KS2000 software interface.

What environmental protection ratings does this module have?

The module conforms to the EN 60529 standard with IP65, IP66, and IP67 protection ratings, making it highly dust-tight and resistant to water jets and temporary immersion.

What are the physical dimensions and weight of the module?

The module measures 30 mm x 210 mm x 26.5 mm (W x H x D) and weighs approximately 350 grams.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

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BECKHOFF IP2311-B400 Fieldbus Box