PM858K01 ABB 3BSE082895R1 AC 800M Controller Processor Unit

Product Description

The ABB PM858K01 (3BSE082895R1) is a processor unit for the AC 800M control platform. It executes application programs, processes controller tasks, and manages real-time control operations. The unit uses an MPC866 processor and provides 16 MB of memory, with 7.147 MB available for application use. Furthermore, it supports multiple applications, configurable task cycles, and controller clock synchronization through the CNCP protocol.

Processing and Application Management

The PM858K01 executes application programs within the controller and coordinates their associated tasks and diagrams. Its processing performance is 0.36 ms per 1,000 Boolean operations, with application program cycle times down to 1 ms.

The controller supports up to 32 applications and 32 tasks. Each application can contain up to 64 programs and 128 diagrams. Therefore, these limits help define the application structure and processing capacity when configuring the controller.

Memory and Firmware Storage

The processor provides 16 MB of memory, including 7.147 MB available for application use. It also incorporates 4 MB of Flash PROM for firmware storage.

In addition, flash memory supports non-volatile storage, while the built-in 3.6 V lithium battery provides backup for supported controller functions. The supplied specifications confirm the presence of the battery but do not identify its backup duration.

Power Supply and Consumption

The PM858K01 operates from a 24 V DC supply within a specified input range of 19.2 to 30 V DC. Its typical and maximum current consumption at 24 V DC are 210 mA and 360 mA, respectively.

Power dissipation is 5.1 W under typical conditions and 8.6 W at maximum. The unit also provides a redundant power supply status input for monitoring the status of the redundant supply arrangement.

Controller Synchronization and Event Handling

The controller supports clock synchronization between AC 800M controllers through the CNCP protocol, with a specified synchronization accuracy of 1 ms. This function helps coordinate time references across controllers.

Meanwhile, the controller supports an event queue of up to 3,000 events per OPC client. This capacity defines the specified event buffering limit for OPC client communication.

Technical Specifications

Frequently Asked Questions

Q: Is the ABB PM858K01 a redundant or high-integrity controller?

A: No. The supplied specifications classify the PM858K01 as neither redundant nor high integrity. Although it includes a redundant power supply status input, this does not make the processor itself a redundant or high-integrity unit.

Q: What processor and memory configuration does the PM858K01 use?

A: It uses an MPC866 processor with a 33 MHz clock frequency. The unit provides 16 MB of total memory, including 7.147 MB of application RAM and 4 MB of Flash PROM for firmware storage.

Q: What is the minimum application cycle time?

A: The specified application program cycle time can be as low as 1 ms. Actual execution timing depends on the configured applications, programs, tasks, and controller workload.

Other Attributes

• Series: Advant OCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

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