Emerson A6824R (A6824-R) rack communication interface module for AMS 6500 Classic TSI system, supports Modbus TCP and Modbus RTU for machinery monitoring data transmission.

Product Overview

• Part No: A6824R (A6824-R)
• Brand: EMERSON EPRO

• Category: Modbus & Rack Interface Module A6824R is a 3U plug-in communication module developed for the AMS 6500 Classic machinery protection system. It collects measurement and alarm data from all monitoring boards within the rack and transmits data to upper DCS or monitoring host via Modbus RTU and Modbus TCP/IP. It supports optional redundant deployment, password-protected configuration, comprehensive hardware self-diagnostics and front panel status LED indicators. This module is fully compliant with API 670 standard and supports hot-swap replacement.

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Core Features

• Dual communication protocols: Modbus RTU (RS485) and Modbus TCP over RJ45 Ethernet
• Collect data from all installed monitoring modules inside AMS6500 rack
• Supports simplex and redundant module configuration
• Hot-swappable for online maintenance without system shutdown
• Built-in module self-diagnosis and front panel status indicators
• Password protected parameter configuration to avoid unauthorized modification

• API 670 compliant for turbomachinery protection applications

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Technical Specifications

• Power supply: 24 VDC
• Max power consumption: 5 W
• Modbus RTU default: 19200 baud, 8 data bits, even parity, 1 stop bit
• Default Ethernet IP: 192.168.255.1
• Form factor: 3U Eurocard, 4TE width
• Operating temperature: 0°C ~ +65°C
• Storage temperature: -30°C ~ +85°C
• Humidity: 5%–95% non-condensing

• Protection class: IP20 inside control cabinet

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Compatibility & Application

• Fits AMS6500 Classic rack, works with all AMS6500 series monitoring modules
• Applied on steam turbines, gas turbines, compressors and rotating equipment for TSI monitoring data exchange with DeltaV, Ovation and other DCS platforms