ABB 3BDZ000398R1 PROFIBUS Redundancy Link Module RLM01 I/O Interface Board

Product Overview
The 3BDZ000398R1 is an original I/O interface board designed by ABB for the AC 800M and S800 I/O systems. It provides high-speed, high-reliability process data acquisition and control, supports redundant configuration, and is compatible with standard PROFIBUS-DP communications.

Key Features
• Original Model: 3BDZ000398R1 (ABB Material No.)
• Function: Digital/Analog I/O Expansion and Signal Conditioning
• System Compatibility: AC 800M Controller, S800 I/O Station, 800xA DCS
• Communication Interface: PROFIBUS-DP V1 (12 Mbit/s), Redundant Link Support
• Input/Output: 16-channel DI or DO (24 V DC), Optional AI/AO Module Slots
• Isolation: Channel-to-channel, channel-to-bus, 500 V AC RMS for 1 min
• Operating Environment: -25°C to +70°C, 5% to 95% RH (non-condensing)
• Certifications: CE, UL, cULus, ATEX Zone 2 / IECEx (Ex nA IIC T4 Gc)
• MTBF: > 300 000 hours (MIL-HDBK-217F, GB 25°C)

Typical Applications
• Oil and gas upstream and downstream process control
• Chemical batch and continuous reactors
• Power plant boiler BMS and steam turbine auxiliary control
• Water treatment SCADA remote I/O station
• OEM machinery safety interlock system upgrades

Technical Specifications (Simplified)
Power Input: 24 V DC ±20%, Power Consumption < 5 W
Dimensions/Weight: 132 × 86 × 55 mm / 0.28 kg
Mounting: 35 mm DIN rail (EN 60715)
Terminals: Cage spring, 0.2–2.5 mm² single-core/multi-core
Firmware Update: Online via PROFIBUS (FDT/DTM)

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