ABB PM861AK02 3BSE018160R1 AC 800M Redundant Processor Unit

Parameter

Specification

Product Model

PM861AK02

Article Number

3BSE018160R1

Product Family

AC 800M

Product Type

Redundant processor-unit package

Package Configuration

Two PM861AK01 processor units

CPU Model

PM861A

Processor Type

MPC860

Clock Frequency

48 MHz

Performance for 1,000 Boolean Operations

0.23 ms

Total SDRAM

16 MB

RAM Available for Applications

7.155 MB

Firmware Flash PROM

2 MB

Power Supply

24 V DC

Permitted Supply Range

19.2–30 V DC

CPU Current Consumption

250 mA typical; 430 mA maximum

CPU Power Dissipation

6 W typical

Power Dissipation with Full ModuleBus and CEX-Bus Supply

11 W typical

Built-In Backup Battery

Lithium, 3.6 V

Minimum Internal-Battery Backup Time for PM861A

118 hours

CEX-Bus Communication Modules

Maximum 12

CEX-Bus Supply Current

Maximum 2.4 A

Recommended Control Network Backbone

100 Mbit/s switched Ethernet

Operating Temperature

+5 to +55 °C

Storage Temperature

-40 to +70 °C

Relative Humidity

5–95%, non-condensing

Application Area

Typical Use

Redundant Process Control

PM861AK02 can operate sequencing, interlocking and regulation applications where a paired AC 800M controller arrangement is required. Transfer from the primary CPU to the backup CPU is specified at less than 10 ms, although complete process response depends on the engineered system.

Plant Utility Automation

The controller package can coordinate water distribution, compressed-air, cooling, steam and other utility functions. Separate application tasks can be assigned according to the required execution rate and operating priority.

Distributed Optical I/O Systems

In a redundant CPU arrangement, PM861A supports seven optical ModuleBus clusters and up to 84 ModuleBus I/O modules. This makes the package applicable to installations where field I/O is distributed across several plant areas.

Production and Material-Handling Control

PM861AK02 can coordinate conveyors, production sections, equipment permissives and machine sequences within an AC 800M architecture that requires primary and backup processors.