ABB AC800M Controller Hardware System

Before the AC 800M Controller system is brought online, investigate which

environmental conditions are applicable. Take note in particular of the

following:

• The controller must not be exposed to conditions that exceed the values given

in the relevant technical specifications.

• The controller must not be used in an environment exposed to strong electrical

interference. Electrical machines can produce interference that exceeds levels

permitted for the equipment, for example during repair work.

• All products must be handled with appropriate precautions with regard to

electrostatic damage.

• The controller must not be exposed to direct sunlight.

Important Software Check

• Use the system’s fault-monitoring facilities to prevent accidents or mishaps.

• When in doubt, ALWAYS CHECK before executing changes.

Important Hardware Notice

• DO NOT, under any circumstances, disconnect the power supply to a

normally functioning system. Always use the correct system shut-down

procedure prior to disconnecting the power supply.

Signal Noise Due to Cables

Cables which may cause electrical interference (for example, power supply cables)

must not be installed adjacent to bus cables carrying fast digital signals. Ensure that

a minimum distance of 10 cm (4 in.) is provided between cables installed inside

cabinets.

Hazardous Electrical Supplies

Operational and maintenance procedures, during which personnel may come into

contact with high voltage, should only be carried out by personnel fully trained in

the maintenance of electrical equipment within those environments, and who are

fully aware of all risks involved.

AC 800M is a hardware platform comprising individual hardware units, which can

be configured and programmed to perform multiple functions.

Once configured and programmed, the AC 800M effectively becomes the AC 800M

or AC 800M HI controller.

The hardware units that form the AC 800M and AC 800M HI Controllers are:

•Processor units (including baseplate)

(PM851/PM851A/PM856/PM856A/PM860/PM860A/PM861/PM861A/

PM864/PM864A/PM865/PM866/PM891)

•High Integrity Processor Unit

(consists of PM865 and SM810/SM811 with corresponding baseplates)

•Communication interfaces for different protocols (including baseplates)

(CI851/CI852/CI853/CI854/CI854A/CI855/CI856/CI857/CI858/CI860/ CI862/CI865/CI867/CI868/CI869/CI871/CI872/CI873)

•CEX-Bus Interconnection Unit

(BC810)

•Power supply units, providing various power output levels

SD831/SD832/SD833/SD834/SS823/SS832)

•Battery back-up unit

(SB821/SB822)

The SB821 is not supported with PM891.

PM851 is equivalent with PM856 unless stated otherwise.

PM851A is equivalent with PM851 unless stated otherwise.

PM856A is equivalent with PM856 unless stated otherwise.

PM860A is equivalent with PM860 unless stated otherwise

PM861A is equivalent to PM861 unless stated otherwise.

PM864A is equivalent to PM864 unless stated otherwise

When equipped with the specified Control Software, the AC 800M Controller acts

either as a stand-alone process controller, or as a controller performing local control

tasks in a control network consisting of many interconnected controllers, operator

stations and servers.

Various I/O systems can be connected to the AC 800M Controller, either directly

(S800 I/O) or via PROFIBUS DP or FOUNDATION Fieldbus.

The AC 800M is delivered without Control Software. To provide the controller

with Control Software, first load the firmware and then create the application

separately using the Control Builder M engineering tool.

The AC 800M Controller consists of a selection of units mounted on horizontal

DIN-rails, which can be housed within an enclosure. The majority of units consist of

a base mounting plate and removable cover attached with screws.

The baseplate, which is always mounted onto the DIN-rail, carries the majority of

the connections to processor, power supplies and communication interfaces, as well

as the connections to the external buses and systems.

The AC 800M Controller provides a cost-effective, low-maintenance solution for

applications ranging from small Programmable Logic Controller (PLC) to advanced

Distributed Control Systems (DCS) control applications and combined DCS, and

High Integrity systems control applications.

In the AC 800M High Integrity Controller, it is possible to run both non-SIL and

SIL classified applications. The AC 800M HI consist of PM865, SM810/SM811

and a High Integrity version of Control Software, and is also available in redundant

configuration. AC 800M HI requires the use of SIL certified S800 I/O units in SIL