ABB AC 800M, Manual

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AC 800M – General Section 1 Introduction
30 3BSE036351-510 A
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
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.