ABB RLM02 PROFIBUS DP/FMS Redundancy Link Module

Serial Interfaces

• Connections: 9-pin Sub-D connector
• Transmission Rate: 9.6 kBit/s to 12 MBit/s
• Type: RS 485
• Electrical Isolation: To IEC/EN 61010-1, functionally isolating
• Test Voltage: 500 Veff
• Device Protection Class: A, B, and M

Line Length Restriction

• Master to M: 50 m
• M to Slave: 50 m
• A/B to A/B: According to PROFIBUS specification

Data Telegram Delay

• A/B to M: 11 Bit times [μs] + 0.6 μs
• M to A/B: 4 Bit times [μs] + 0.6 μs

Power Supply

• Operating Voltage: 24 VDC (+20 ... +33 V)
• Power Consumption: 120 mA typically at 24 V
• Power Loss: Approx. 3.6 W
• Connection: 8-pin terminal strip
• Wire Cross Section: 0.14 ... 1.5 mm²

Ambient Conditions

• Operating Temperature: 0 ... 55°C
• Transport / Storage Temperature: -30 ... 85°C
• Relative Humidity: Max. 75% non-condensing in operation
• Altitude: Up to 2000 m

Alarm Contact

• Function: Normally closed / Open in case of error
• Switching Voltage: < 60 VDC
• Switching Current: Max. 1 A

Design

• Dimensions: 134 x 56 x 70 mm (H x W x D)
• Weight: Approx. 330 g
• Attachment: Mounting rail, 35 mm
• Protection: IP 20
• Placement: Indoor use (installation in an appropriate enclosure is equivalent)