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PM891K02 3BSE053242R1 is a
high-performance redundant processor unit in the
AC800M controller family, belonging to the hardware system of ABB Ability System 800xA control system. It is a core control module designed for rail mounting.
Featuring an ultra-high clock frequency, large memory capacity and precise computing performance, this product meets the high computing power and high reliability control requirements in industrial scenarios. The support for redundant design greatly improves system fault tolerance.It complies with RoHS environmental protection requirements in regions including the EU, the UAE and China, as well as the EU WEEE Directive on waste electrical and electronic equipment. It is widely used in industrial automation fields with strict demands on control accuracy and system stability.
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Core Basic Information
Product Model: PM891K02Order Number: 3BSE053242R1Series: ABB AC800M ControllersMounting: Rail-mountedCore Function: Redundant Processor UnitRedundancy: Redundancy supported (Yes); no High Integrity design
Performance
Clock Frequency: 450 MHz, a high-performance configuration in the AC800M seriesProcessing Performance: Executes 1000 Boolean operations in only 0.043 ms.The core processing performance is identical to the PM891K01, making it one of the fastest models in the AC800M series.
Memory Configuration
Total Memory: 256 MB, a large-capacity model in the seriesApplication Available RAM: 208.985 MB, sufficient for running complex industrial control programsFlash Memory: Equipped with Flash memory for storage (Yes), supporting reliable data storage
Power Supply & Accessories
Compatible with dedicated accessories for the AC800M series.Fully meets the storage specification requirements of System 800xA version 5.1 FP4 and above.
Physical Dimensions
Width: 174 mm (6.85 in.)Height: 186 mm (7.32 in.)Depth: 94 mm (3.70 in.)
Weight (including base)
- PM891K01: 1600 g (3.5 lbs)
- PM891K02: 4000 g (8.8 lbs)
The weight of the redundant version is significantly increased due to upgraded hardware configuration.
Package including:
2 pcs PM891K01 Processor Unit
1 pcs TK850V007 CEX-bus Extension Cable
1 pcs TK855 RCU Data Link Cable
1 pcs TK856 RCU Control Link Cable
Please note: The BC810K02 is not included in the PM891K02 Redundant Processor Unit kit. In order to make hot replacement of PM891 Processor Unit possible, the BC810K02 is required and has to be ordered separately.
Core Product Advantages
Ultra-High Computing EfficiencyWith a 450 MHz clock frequency and performance of 0.043 ms per 1000 Boolean operations, it quickly processes massive control data on industrial sites, suitable for high-speed, high-precision automation control scenarios.
Redundancy & High ReliabilitySupports redundant configuration. In case of a fault in the primary processor unit, bumpless switchover is achieved, effectively avoiding system downtime and ensuring continuous industrial production. It is ideal for non-stop production industries such as petrochemical, power, and metallurgy.
Large-Capacity Memory256 MB total memory plus 208.985 MB application-available RAM can accommodate complex control logic, extensive process parameters, and historical data storage. It meets the requirements of large-scale control systems without additional memory expansion modules.
Standardized CompatibilityAs a standard module in the AC800M series, it is fully compatible with the 800xA control system hardware ecosystem. It can be seamlessly used with communication, power supply, and I/O modules within the series, and supports industrial-grade functions such as hot swapping for easy system integration and maintenance.
Global ComplianceComplies with RoHS environmental standards in multiple countries and the EU WEEE Directive, meeting market access requirements of major global industrial markets and facilitating global project implementation for multinational enterprises.
Application & Compatibility
System CompatibilityPart of the ABB Ability System 800xA control system. It can be used with S800 I/O, S900 I/O, Select I/O modules, as well as AC800M series communication and power supply modules. It can also be equipped with dedicated accessories such as BC810K02 and BC820K02 for functional expansion.
Application ScenariosDue to its high performance and redundancy, it is widely used in industrial automation applications with extremely high demands on computing speed, stability, and fault tolerance, including power plants, petrochemical facilities, large-scale metallurgy, and intelligent manufacturing lines. It serves as a core controller for plant-wide logic control, process control, and data processing.
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