Bachmann BES212/N Bus Expansion Slave Module

Overview

The Bachmann BES212/N is a high-performance bus expansion slave module for the M1 automation system. It enables distributed I/O stations to connect seamlessly using the FASTBUS protocol. The module allows remote stations to operate as local modules without additional programming. With daisy-chain topology support, it integrates multiple substations efficiently. The integrated 24 VDC power supply powers connected SubDevices. Its minimal signal delay ensures fast communication for critical industrial automation tasks.

Technical Specifications

• Model: BES212/N

• Function: Bus expansion slave for distributed I/O

• Bus System: FASTBUS

• Topology: Daisy-chain, supports up to 6 SubDevices

• Modules per SubDevice: Up to 15 M200 modules

• Access Time: < 1.5 µs

• Power Supply: Integrated 24 VDC output

• Efficiency: 84%

• Connectors: RJ45 for FASTBUS communication

• Operating Voltage: 24 VDC (range 18 VDC to 34 VDC)

• Nominal Power: 17 W

• Current Consumption: Max. 1.2 A at 24 V

• Output Current (+5 V): 2 A

• Output Current (+15 V): 250 mA

• Output Current (-15 V): 200 mA

• Reverse Polarity Protection: Yes

• Operating Temperature: −30°C to +60°C

• Storage Temperature: −40°C to +85°C

• Relative Humidity: 5% to 95%, non-condensing

• Maximum Number of Stations: Up to 6 distributed SubDevices

• Maximum Distance Between Stations: 3 m using recommended CAT7 cable

• Transmission Medium: CAT7 special cable recommended

• Integrated Watchdog: Yes