3IF681.95 Communication Module Detailed Product Description Product Introduction

3IF681.95 is a compact dual-interface communication module from B&R SYSTEM 2005 platform, specially designed for multi-device interconnection in industrial environments. The module integrates 1 RS232 serial interface and 1 10BASE2 (BNC interface) Ethernet interface. It adopts a standard slot direct-insertion structure, supports hot swapping, has industrial-grade electrical isolation and anti-interference capabilities, and can simultaneously achieve communication of traditional serial port devices and Ethernet networking via coaxial cables. It is suitable for long-term stable operation in control cabinets and is the core component for network transformation of old equipment and expansion of multi-protocol communication. Basic Information

Product Model: 3IF681.95

Brand: B&R (Becko)

Series: SYSTEM 2005 Communication Interface Module

Product Type: Multi-protocol Composite Communication Module

Installation Method: Compatible with CP260, IF260, IF060 and other 2005 series CPUs and IF slots, direct insertion installation

Dimensions: Approximately 140mm × 18mm × 86mm

Weight: Approximately 0.11kg

Protection Level: IP20 (Only applicable for installation in control cabinets)

Power Supply: 5VDC, powered by the system backplane, no external power supply required

Certifications: Compliant with CE, UL, CSA industrial standards

Status: Discontinued by Manufacturer

Functions and Positioning

This module serves as the dual-link communication hub for the SYSTEM 2005 PLC system, meeting the needs of both traditional serial ports and coaxial Ethernet communication. The RS232 interface uses a 9-pin D-Sub connector, supporting point-to-point connections with HMI, barcode scanners, serial printers, and legacy serial devices, enabling stable short-distance data transmission. The 10BASE2 Ethernet interface uses a BNC connector, compatible with coaxial cable networks, supporting TCP/IP and UDP protocols, and capable of connecting to upper computers, SCADA systems, other PLCs, and Ethernet devices, completing program downloads, remote monitoring, and data sharing functions. The module supports hot swapping, allowing for installation and replacement without downtime, reducing operational costs, and is suitable for communication expansion in small-scale automation systems, upgrading of old equipment, and industrial scenarios with coaxial networks.

Core Performance Parameters

Communication Interfaces: 1 RS232 (9-pin D-Sub), 1 10BASE2 Ethernet (BNC female connector)

Supported Protocols: RS232 compatible with ASCII and binary protocols; Ethernet supports TCP/IP, UDP

Transmission Rate: RS232 maximum 19.2kbps; Ethernet 10Mbps, supports half-duplex/full-duplex auto-adaptation

Electrical Isolation: Electrical isolation between RS232 and Ethernet interfaces, strong anti-interference capability

Power Consumption: ≤2.4W

Operating Temperature: -20℃ to + 60℃

Storage Temperature: -40℃ to + 85℃

Relative Humidity: 5% to 95%, no condensation

Status Indicators: LED indicators, showing RS232 transmit/receive (TX/RX), Ethernet link, and data activity status

Network Functions: Supports static IP configuration, compatible with SYSTEM 2005 network architecture, 10BASE2 coaxial cable transmission distance up to 185 meters

General Adaptor Accessories

Communication Cables: Shielded RS232 straight-through cables, 10BASE2 industrial coaxial cables (BNC connector)

Connection Accessories: 9-pin D-Sub connector, industrial BNC connector, coaxial cable termination resistor

Assembly Accessories: SYSTEM 2005 multi-slot standard backplane, DIN rail installation kit

Software Tools: B&R Automation Studio configuration software, Ethernet communication library, RS232 driver, network diagnostic tool

Applicable Equipment Domains

Industrial Automation: SYSTEM 2005 PLC control system, automated assembly lines, process control stations, discrete processing production lines

Factory Network: 10BASE2 coaxial Ethernet networking, PLC and HMI/upper computer data interaction, remote monitoring and operation systems General Machinery: Packaging Machinery, Textile Equipment, Injection Molding Machinery, Woodworking Machinery, Electronic Processing Equipment

Building Automation: HVAC (Heating, Ventilation, and Air Conditioning), Building Automation Equipment, Energy Monitoring System

Process Industry: Water Treatment Equipment, Food and Beverage Production Lines, Pharmaceutical Equipment, Small and Medium-sized Chemical Control Systems

Renovation and Upgrading: Communication Upgrade of Old Equipment, Serial Port to Ethernet Adaptation, Networking of Coaxial Network Scenarios Equipment