Bachmann RS204 Interface Module

Availability: 99 left in stock

Product DescriptionThe RS204 (Order Number: 00012220-00) is a communication expansion module for the Bachmann M1 automation system. It provides four independent high-performance serial interfaces in a single-slot...

SKU: RS204

Manufacturer: Bachmann
Product No.: RS204
Product Type: Interface Module
Product Origin: Germany
Payment:T/T, Western Union
Weight: 240g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Description
The RS204 (Order Number: 00012220-00) is a communication expansion module for the Bachmann M1 automation system. It provides four independent high-performance serial interfaces in a single-slot housing, allowing the central processor to communicate simultaneously with multiple peripheral devices. Each channel supports standard industrial protocols and high-speed data exchange, enabling seamless integration of decentralized system components.

The RS204 ensures robust data integrity through galvanic isolation, protecting the M1 system bus from electrical noise and potential differences. Ideal for legacy hardware and modern serial instruments, it delivers deterministic performance in demanding industrial environments. Austrian-built hardware provides high-vibration resilience, making it suitable for energy, maritime, and other mission-critical sectors.

Technical Specifications

Feature	Specification
Interface Channels	4 Independent Serial Ports
Supported Standards	RS232, RS422, RS485 (Hardware/Software selectable)
Baud Rate	Up to 115.2 kbit/s per channel
Isolation	500 V RMS galvanic isolation (ports vs system bus)
Data Buffer	Integrated hardware FIFO for high-speed data reliability
Connection Technology	Front-mounted D-Sub or terminal-style connectors (variant dependent)
Diagnostics	LED indicators per port for Transmit (TX) and Receive (RX) activity
Operating Temperature	-30°C to +60°C
Dimensions	5.5 × 5.5 × 12.0 cm
Unit Weight	0.24 kg

Application Scenarios

Power plant control systems: Modbus RTU communication with meters and protection relays
Maritime bridge systems: Aggregation of multiple NMEA 0183 sensors (GPS, wind, heading) into a single M1 controller

Technical FAQ

Q: Can I configure each of the four ports with a different protocol?
A: Yes. Each channel is independently configurable via Bachmann SolutionCenter. For example, one port can run as RS232 for a local terminal while another operates as RS485 multi-drop for field sensors.

Q: Does this module require special drivers for Modbus communication?
A: No special drivers are needed. The RS204 provides the physical layer, while Bachmann M-OS communication libraries supply ready-to-use function blocks for Modbus RTU Master/Slave operations.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

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We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.