Bachmann RS204/T – Serial Communication Interface Module

Product Overview

The Bachmann RS204/T is a versatile serial communication module that provides four independent interfaces for RS232, RS422, or RS485 connections. It enables seamless integration of external devices such as sensors, controllers, operator panels, and third-party systems into the Bachmann M1 automation platform. Moreover, its robust design ensures reliable operation under harsh industrial conditions. This module is ideal for applications in power generation, renewable energy, manufacturing, and process industries.

Functional Highlights

The RS204/T supports high-speed communication up to 1.5 MBaud and allows flexible configuration of serial standards per channel. In addition, integrated auto-flow control simplifies handshake management, while galvanic isolation protects both the module and connected devices. Therefore, communication reliability and system stability are maintained even in challenging environments. Built-in diagnostics with channel status LEDs enable fast fault detection and simplified maintenance.

Technical Specifications

• Model: RS204/T

• Series: Bachmann M1 Automation System – Communication Modules

• Manufacturer: Bachmann electronic GmbH (Austria)

• Type: Serial Communication Module

• System Compatibility: Bachmann M1 automation system

• Interfaces: 4 independent serial ports

• Supported Standards: RS232, RS422, RS485 (configurable per channel)

• Baud Rate: 300 bps to 115.2 kbps

• Data Format: 7/8 data bits, odd/even/none parity, 1/2 stop bits

• Isolation: Galvanic isolation between channels and system bus

• Diagnostics: Built-in self-diagnostics, channel status LEDs

• Power Consumption: 4 W

• Dimensions: 130 × 25 × 150 mm

• Weight: 0.45 kg

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

• Storage Temperature: −40 °C to +85 °C

• Humidity Range: 5% to 95% RH, non-condensing

• Mounting: DIN rail or rack installation

• Certifications: CE, UL, RoHS

FAQ

Q1: How many serial interfaces does RS204/T provide?
It offers 4 independent serial channels, configurable as RS232, RS422, or RS485.

Q2: Can the module handle high-speed communication?
Yes, it supports data rates up to 1.5 MBaud for real-time system control.

Q3: Does it provide electrical isolation?
Yes, galvanic isolation protects each channel and the system bus from interference.

Q4: Is the module hot-swappable?
Yes, it can be replaced without shutting down the Bachmann M1 system.

Q5: Which industries commonly use this module?
It is ideal for power generation, renewable energy, oil & gas, chemical, water treatment, and manufacturing automation.