Overview

The RLM02 module converts a non-redundant PROFIBUS line into two redundant RS485 lines or vice versa. It can be positioned directly after a master, before a bus segment with multiple slaves, or before an individual slave. PROFIBUS stations equipped with redundant couplers can connect directly to a PROFIBUS line set to redundant mode by the RLM02.

Specifications

• Compatibility: PROFIBUS DP/FMS lines
• Automatic Line Selection: Enables automatic switch between lines
• Transmission Rate: 9.6 kbit/s to 12 Mbit/s
• Communication Monitoring: Built-in
• Repeater Functionality: Integrated for signal boosting
• Wiring: 8-pin terminal strip, supports up to 1.5 mm² wire cross section
• Redundant Power Supply: 24 VDC (range: +20 to +33 V), typical consumption of 120 mA at 24 V
• Operating Temperature: 0°C to 50°C
• Status and Error Display: Visual indicators for system status and errors
• Power Supply Monitoring: Monitors power levels for stable operation
• Potential-Free Signaling Contact: For additional flexibility
• Installation: Easy assembly on a DIN mounting rail