AC 800M hardware platform can be programmed to perform multiple functions, depending

on the specific unit configuration and operating system selected.

The hardware units which form the AC 800M Controller are:

• Processor units (including base plates)

• Communication interfaces for different protocols (including base plates)

• Power supply units, providing various power output levels

• Battery back-up unit

• For High Integrity systems control applications with AC 800M HI, special module

SM812, is needed

Once configured, the AC 800M hardware platform effectively becomes the AC 800M

Controller.

Equipped with the specified Control Software, the AC 800M Controller can be used for

all kinds of process and industrial automation applications. With Control Software, the

controller can act either as a stand alone process controller or as a controller, performing

local control tasks, in a control network consisting of many interconnected computers.

The AC 800M Controller is delivered without firmware. To provide the controller with

Control Software, it will first be necessary to load the firmware and create

the application separately by using the Control Builder interface.

The major features of the AC 800M are:

•High performance and large application memory.

•Extensive availability.

•CPU redundancy (PM858/PM861/PM862/PM864/PM865/PM866/PM867/PM891).

•AC 800M High Safety Integrity Level 2 certified using PM865/SM810/SM811 or PM867/SM812.

•AC 800M High Safety Integrity Level 3 certified using PM865/SM811 or PM867/SM812.

•Built-in redundant Ethernet channels.

•Built-in RS-232C channels.

•Sectioned CEX-Bus using a pair of BC810 / BC820.

•Quick and simple fault-finding with the aid of LEDs on each unit / channel.

•Built-in battery back-up of memory (except for PM891).

•External battery back-up.

•Use of industry standard power supply voltage - 24V d.c.

•Easy mounting on standard DIN rail.

•IP20 Class protection without the requirement for enclosures.

•Incorporation of a wide variety of communication possibilities.

•Hardware based on standards for optimum communication connectivity (Ethernet, PROFIBUS DP).