1 of 1

Beckhoff IP2021-B810 Fieldbus Box 8-Channel Digital Output Module

Beckhoff IP2021-B810 Fieldbus Box 8-Channel Digital Output Module

Only 10 item(s) left in stock
  • Manufacturer: BECKHOFF

  • Product No.: IP2021-B810

  • Country of origin:Germany

  • Product Type: Fieldbus Box Modules

  • Payment: T/T, Western Union

  • Weight: 2000g

  • Dimensions: 150 mm x 60 mm x 50 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Description

Delivering localized output actuation in demanding machine environments, the Beckhoff IP2021-B810 Fieldbus Box integrates serial communications directly at the machine level. This rugged fieldbus module features 8 digital outputs operating at 24 V DC, capable of handling switching currents up to 2 A per channel. Designed for decentralized control systems, the Beckhoff IP2021-B810 processes control signals from a master device over an integrated RS232 serial connection, eliminating the need for complex intermediate sub-distribution assemblies. Its robust construction makes it ideal for direct mounting on machinery under challenging physical conditions.

Features

  • 8 Digital Outputs: Standard 24 V DC outputs designed to actuate heavy industrial loads.
  • High Current Load: Supports up to 2 A output current per channel, allowing direct connection to solenoids and contactors.
  • RS232 Control Interface: Simplified, point-to-point serial communication for direct controller linking.
  • M8 Circular Connectors: Fast, vibration-resistant screw-type connection interfaces.
  • IP67 Protection Class: Fully encapsulated housing protects internal electronics from moisture, dust, and non-corrosive liquids.
  • Cabinet-Free Design: Rugged, space-saving layout optimized for localized installation directly on structural machine frames.

Applications

  • Pneumatic Valve Block Actuation: Direct triggering of solenoid valves in pneumatic distribution networks.
  • Conveyor Line Integration: Decentralized drive and stop-gate control along large materials handling systems.
  • Automotive Assembly Workstations: Localized signal distribution for jigs, clamps, and position indicators.
  • Packaging Machinery: Multi-channel output control in dust-prone or washdown-adjacent production sectors.

Technical Specifications Table

Parameter Specification Value
Manufacturer Beckhoff Automation GmbH & Co. KG
Model / Article Number IP2021-B810
Module Type Fieldbus Box Digital Output Module
Number of Outputs 8 channels
Output Type Digital, 24 V DC
Max. Output Current 2 A per channel (short-circuit protected)
Communication Interface RS232 serial interface
Connection Method M8 screw-type connectors
Ingress Protection Rating IP67 (when all ports are fully mated or capped)
Operating Temperature 0 to +55 degC
Storage Temperature -25 to +85 degC
Shipping Weight (Calculated) 2.0 kg
Package Dimensions (Calculated) 150 mm x 60 mm x 50 mm

Connections and Interfaces

M8 Output Pin Signal Assignment Description
Pin 1 +24 V DC Auxiliary power / sensor supply contact
Pin 3 GND (0 V) Reference ground potential
Pin 4 Output Signal Controlled digital output driver path (24 V DC, 2 A)

Empirical Engineering Insights

Alternative Models & Compatibility

The IP2021-B810 is ideal for localized RS232 architectures. If migration to industrial Ethernet is required, a transition to Beckhoff EP2008 (EtherCAT) or equivalent fieldbus couplers will necessitate replacing the physical M8 cabling with Industrial Ethernet-capable interfaces and adjusting the twinCAT configuration files from serial mappings to standard EtherCAT PDOs.

Application Pitfalls & Engineering Notes

While each channel supports a high peak capacity of 2 A, the cumulative load current of all channels combined must not exceed the physical capability of the main auxiliary power input pin. Operating all 8 channels simultaneously at maximum load without active thermal management or duty cycling will result in localized thermal buildup and may trigger internal overcurrent protection circuits.

Commissioning & Wiring Tips

Because RS232 relies on single-ended signals, it is inherently susceptible to electrical noise. Standard engineering rules limit RS232 cable lengths to 15 meters. Ensure the RS232 communication cable is completely shielded, and tie the shield braid to low-impedance ground at the controller end. Do not run communication lines parallel to high-voltage AC or variable frequency drive (VFD) output motor cables.

Installation Guidelines

CRITICAL WARNING:

Always isolate the auxiliary power supply and fieldbus control line before starting maintenance or hardware integration. Electrical arc flashes or accidental grounding of the 2 A output lines can cause severe equipment damage and disrupt controller operations across the wider serial loop.

1

Mount the Fieldbus Box onto a flat, vibration-damped structural surface using M4 or M5 mounting screws. Torque to the specified mechanical limits to prevent frame distortion.

2

Connect the RS232 interface cable to the dedicated serial communication port, ensuring the locking ring on the connector is secured to maintain IP67 integrity.

3

Verify wiring assignments on the M8 output channels to prevent accidental short circuits, and apply protective cap seals over any unused physical ports.

Loading product navigation…

What is the maximum output current rating per channel for the IP2021-B810?

Each digital output channel on this module can supply up to 2 A at 24 V DC. The output channels are fully protected against short-circuit events.

What serial communication standard does this module use to interface with a controller?

It utilizes an RS232 interface for direct, point-to-point serial communication link structures.

Can this unit be mounted directly on a machine outside of a protective cabinet?

Yes, its IP67 encapsulation and physical design allow direct mounting to the machine frame, eliminating cabinet space requirements.

What is the physical connection standard used for inputs, outputs, and power on the module?

The module uses standard M8 screw-type circular connectors to ensure robust, dust-tight, and water-resistant connections.

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 .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

Recently Viewed Products

Technical knowledge

Electric Actuators Designed to Replace Fluid Power Systems: A Practical Industrial Automation Guide

This article explains how integrated electric actuators, such as SMC’s e-Actuator series, are transforming industrial motion control by replacing traditional pneumatic and hydraulic systems. It...

Math Operations Using OpenPLC for Industrial Automation Applications

This article explains how PLC systems perform core mathematical operations such as addition, subtraction, multiplication, division, modulo, and exponentiation within industrial automation. It shows...

Advanced Boolean Logic with FBD PLC Programming: Practical Industrial Applications Beyond Basic Logic

The article explains several advanced Boolean logic functions used in PLC programming beyond basic AND, OR, and NOT operations. It covers how tools like truth tables, multiplexers, pulse generators,...

Boolean Logic in PLC Programming: Understanding FBD Logic Gates

Boolean logic is the foundation of every PLC program. From simple machine controls to complex industrial automation systems, logic gates determine how controllers respond to changing inputs and...

Deep-Dive Guide to Industrial Firewalls and OT Network Segmentation

Industrial firewalls play a critical role in OT cybersecurity, protecting PLC, DCS, and SCADA networks through segmentation, ingress/egress control, and IDS/IPS integration aligned with IEC 62443...

Guide to Robotic Grippers: From Delicate Handling to Heavy-Duty Automation

Modern robotic grippers are evolving beyond traditional mechanical jaws. From gecko-inspired adhesive systems and soft food-grade grippers to AI-powered warehouse tools, advanced gripping...