PRODUCT INFORMATION
Product Overview
The ABB PM891K02 3BSE053242R1 is an AC800M Redundant Processor Unit designed for industrial control applications. This unit incorporates an MPC8270 microprocessor running at a clock frequency of 450 MHz. It includes 256 MB of total memory with 208.985 MB RAM allocated for application programs.
The system delivers redundant controller operation with a maximum switchover time of 10 milliseconds. It supports up to 84 I/O modules across seven optical Modulebus clusters. The unit connects up to 12 communication modules on the CEX bus. Hot replacement requires the BC810K02 kit, which is not included and must be ordered separately.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Redundancy | Yes |
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| High Integrity | No |
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| Clock Frequency | 450 MHz |
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| Performance, 1000 boolean operations | 0.043 ms |
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| Performance | 0.043 ms |
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| Memory | 256 MB |
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| RAM available for application | 208.985 MB |
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| Flash memory for storage | Yes |
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| Processor type | MPC8270 |
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| Switch over time in red. conf. | Max 10 ms |
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| No. of applications per controller | 32 |
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| No. of programs per application | 64 |
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| No. of diagrams per application | 128 |
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| No. of tasks per controller | 32 |
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| Number of different cycle times | 32 |
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| Cycle time per application programs | Down to 1 ms |
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| Flash PROM for firmware storage | 16 MB |
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| Power supply | 24 V DC (19.2-30 V DC) |
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| Power consumption +24 V typ/max | 660/750 mA |
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| Power dissipation | 15.8 W (18 W max) |
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| Redundant power supply status input | Yes |
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| Built-in back-up battery | No |
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| Clock synchronization | 1 ms between AC 800M controllers by CNCP protocol |
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| Event queue in controller per OPC client | Up to 3000 events |
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| AC 800M transm. speed to OPC server | 36-86 events/sec, 113-143 data messages/sec |
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| Comm. modules on CEX bus | 12 |
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| Supply current on CEX bus | Max 2.4 A |
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| I/O clusters on Modulebus with non-red. CPU | 0 electrical + 7 optical |
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| I/O clusters on Modulebus with red. CPU | 0 electrical + 7 optical |
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| I/O capacity on Modulebus | Max 84 modules |
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| Modulebus scan rate | 0 - 100 ms (actual time depending on number of I/O modules) |
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| Supply current on Electrical Modulebus | 24 V : max 1.0 A 5 V : max 1.5 A |
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| Ethernet channels | 2 |
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| Ethernet interface | 10/100 Mbit/s |
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| Control Network protocol | MMS (Manufacturing Message Service) and IAC (Inter Application Communication) |
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| Recommended Control Network backbone | 100 Mbit/s switched Ethernet |
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| Real-time clock stability | 50 ppm (approx 0.5h / year) |
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| RS-232C interface | 1 for service tool (COM 4) |
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| RS-232C interface (COM3) (non red. only) | Not supported |
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| RS-232C interface (COM4) (non red. only) | RS-232C, 9 600 baud, RJ-45 female (8-pole), opto isolated, no RTS-CTS support |
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| Temperature, Operating | 0 to +55 °C (+32 to +131 °F) |
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| Temperature, Storage | -40 to +70 °C (-40 to +158 °F) |
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| Temperature changes | 3 °C/minutes according to IEC/EN 61131-2 |
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| Pollution degree | Degree 2 according to IEC/EN 61131-2 |
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| Corrosion protection | G3 compliant to ISA 71.04 |
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| Relative humidity | 5 to 95 %, non-condensing |
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| Emitted noise | - |
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| Vibration | 10 < f < 50 Hz: 0.0375 mm amplitude, 50 < f < 150 Hz: 0.5 g acceleration, 5 < f < 500 Hz: 0.2 g acceleration |
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| Rated Isolation Voltage | 50 V |
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| Dielectric test voltage | 500 V a.c. |
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| Protection class | IP 20 according to EN 60529, IEC 529 |
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| Altitude | 2000 m (6562 ft) according to IEC/EN 61131-2 |
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| Emission & Immunity | EN 61000-6-4, EN 61000-6-2 |
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| CE Mark | Yes |
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| Electrical Safety | EN 50178, IEC 61131-2, UL 61010-1, UL 61010-2-201 |
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| Hazardous location | UL 60079-15, cULus Class 1, Zone 2, AEx nA IIC T4, ExnA IIC T4Gc X |
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| Marine certificates | ABS, BV, DNV, LR, CCS |
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| TUV Approval | No |
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| RoHS compliance | EU RoHS, UAE RoHS, CN RoHS |
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| WEEE compliance | DIRECTIVE/2012/19/EU |
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| Width | 174 mm |
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| Height | 186 mm |
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| Depth | 94 mm |
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| Weight (including base) | K01 1600 g / K02 4000 g |
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TECHNICAL INFORMATION
Features
- Operates an MPC8270 processor at a 450 MHz clock frequency.
- Executes 1000 boolean operations in 0.043 milliseconds.
- Provides redundant controller execution with maximum 10 ms switchover time.
- Allocates 208.985 MB application RAM from 256 MB onboard memory.
- Supports dual 10/100 Mbit/s Ethernet ports for Control Network communication.
- Interfaces with up to 12 communication modules via CEX bus.
- Manages up to 84 I/O modules across seven optical Modulebus clusters.
TECHNICAL INFORMATION
Connections / Interfaces
- Provides two 10/100 Mbit/s Ethernet interfaces for MMS and IAC Control Network protocols.
- Includes one opto-isolated RJ-45 female RS-232C COM4 port for service tool connection.
- Contains an interface for connecting up to 12 CEX communication modules.
- Features an optical Modulebus interface supporting up to seven optical clusters.
TECHNICAL INFORMATION
Installation Guidelines
- Install the unit in an environment conforming to IP20 protection standards.
- Provide a 24 V DC power supply within the 19.2 to 30 V DC range.
- Order and install the separate BC810K02 kit to enable hot replacement.
- Operate the hardware within the ambient temperature range of 0 to 55 degrees Celsius.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure up to 32 applications and 32 cyclic tasks per controller.
- Define program cycle times down to 1 millisecond.
- Use the female RJ-45 COM4 port for service tool communication at 9600 baud.
- Synchronize AC 800M controller clocks to 1 millisecond using the CNCP protocol.
TECHNICAL INFORMATION
Compatibility
- Integrates with ABB AC800M series hardware and optical Modulebus clusters.
- Requires the BC810K02 unit kit to achieve hot replacement functionality.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- The BC810K02 is not included in the PM891K02 kit and must be ordered separately.
TECHNICAL INFORMATION
Compliance and Certifications
- Certified for hazardous locations under cULus Class 1, Zone 2, Ex nA IIC T4.
- Complies with EN 61000-6-4 emission and EN 61000-6-2 immunity requirements.
- Approved under marine standards including ABS, BV, DNV, LR, and CCS.
- Meets ISA 71.04 G3 corrosion protection specifications.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSIntegrates with ABB AC800M series hardware and optical Modulebus clusters. Requires the BC810K02 unit kit to achieve hot replacement functionality.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the ABB PM891K02 processor unit?
It provides redundant processing for AC800M control systems with a 10 ms maximum switchover time.
Is the BC810K02 kit included with the PM891K02 redundant processor unit?
No. The BC810K02 is not included and must be ordered separately for hot replacement.
What communication interfaces are built into the PM891K02 unit?
It features two 10/100 Mbit/s Ethernet ports, one RS-232C service port, CEX bus, and optical Modulebus.
What input voltage does the PM891K02 processor require?
The unit operates on 24 V DC power within an allowable range of 19.2 to 30 V DC.
