3BSE036351-510 A 29
Section 1 Introduction
Product Overview
AC 800M – General
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.