Emerson A6824 Rack Interface Module

The ModBus and Rack Interface Module is designed to provide high reliability for the plant's most critical rotating machinery.

It reads parameters from all AMS 6500 modules and outputs them via ModBus TCP/IP and/or ModBus RTU (serial).

This 1-slot monitor can be used with other AMS 6500 monitors to form a complete API 670 machinery protection monitor.

Applications include steam, gas, compressor and hydraulic turbine machinery.

Operators have access to machinery health parameters in the control environment for seamless integration.

The module powers a local graphical display on the protection rack for reading machine and instrument information.

It can be configured with ModBus TCP/IP or ModBus RTU, or both with redundant paths.

The AMS 6500 is an integral part of PlantWeb® and AMS software.

PlantWeb combines the Ovation® and DeltaV™ process control systems to provide operators with an integrated view of machine health.

AMS software provides maintenance personnel with advanced predictive and performance diagnostic tools to accurately determine machine failures at an early stage.

3U-sized, 1-slot plug-in module reduces cabinet space requirements by half compared to traditional 6U cards

API 670-compliant hot-swappable modules

Password protected user configuration

Self-test features include monitoring of hardware, power inputs and hardware temperature

A6824 module can be used in multiple 19’ racks

A6824 is a 6TE wide module with no redundancy option for IMR6000 series 19’ racks

A6824R is a 4TE wide module with optional redundancy for IMR6500 series, 19’ racks

Data Outputs

ModBus RTU (serial): 19.2 kbaud

Data Bits 8

Parity Even

Stop Bit 1

Default address IP address 192.168.255.1

Subnet mask 255.255.255.0

ModBus Ethernet: RJ 45 socket, 10BaseT

Green LED: Power on

Handle: for easy removal of cards and boards

Module and sensor identification board

Example data types: speed, vibration (1/2x, 1x, etc.), gap value, alarm status, channel OK, phase

Environment, general

Module: IP 00. DIN 40050

Front plate: IP 21. DIN 40050

Climate: DIN 40040 class KTF

Operating temperature: 0° - 65°C (32° - 149°F)

Storage temperature: -30° - 85°C (-22° - 185°F)

Relative humidity: 5 - 95%, non-condensing

Vibration; IEC 68-2. Part 6

0.15 mm, 10 - 55 Hz

19.6 mm/s2. 55 - 150 Hz

Shock: IEC 68-2. Part 29

98 m/s2 peak, 16 ms

Electromagnetic compatibility: EN50081-1 / EN50082-2

Power consumption: 5 W max.