HomeABBAC800MProcessor ModuleABB PM851AK01 3BSE066485R1 AC800M Processor Module
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ABB PM851AK01 3BSE066485R1 AC800M Processor Module

Reference Price Range
$1,890.00
Indicative market reference range only. This is not a final quotation. Final price depends on product condition, current stock, quantity, destination and delivery requirements.

The ABB PM851AK01 3BSE066485R1 is a rail-mounted AC800M processor module designed for non-redundant industrial control systems. It features an MPC860 processor running at a clock frequency of 24 MHz with 12 MB memory. Application execution utilizes 6.253 MB of available RAM with task cycle times down to 1 ms.

ManufacturerABB
Part Number3BSE066485R1
ModelPM851AK01
Product TypeProcessor Module
ConditionNew
Warranty12 Months
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PRODUCT INFORMATION

Product Overview

The ABB PM851AK01 3BSE066485R1 is a rail-mounted AC800M processor module designed for non-redundant industrial control systems. It features an MPC860 processor running at a clock frequency of 24 MHz with 12 MB memory. Application execution utilizes 6.253 MB of available RAM with task cycle times down to 1 ms.

The CPU board integrates flash memory, a real-time clock, LED status indicators, and an INIT push button. One RJ-45 Ethernet channel supports MMS and IAC protocols for communication across the control network. The unit supports one CEX bus communication module and up to 24 Modulebus I/O modules.

TECHNICAL DATA

Technical Specifications

ParameterSpecification
RedundancyNo
High IntegrityNo
Clock Frequency24 MHz
Performance, 1000 boolean operations0.46 ms
Performance0.46 ms
Memory12 MB (from 800xA 5.1 FP4)
RAM available for application6.253 MB (from 800xA 5.1 FP4)
Flash memory for storageYes
Processor typeMPC860
Switch over time in red. conf.NA
No. of applications per controller32
No. of programs per application64
No. of diagrams per application128
No. of tasks per controller32
Number of different cycle times32
Cycle time per application programsDown to 1 ms
Flash PROM for firmware storage2 MB
Power supply24 V DC (19.2-30 V d.c.)
Power consumption +24 V typ/max180 / 300 mA
Power dissipation4.32 W (7.2 W max)
Redundant power supply status inputYes
Built-in back-up batteryLithium, 3.6 V
Clock synchronization1 ms between AC 800M controllers by CNCP protocol
Event queue in controller per OPC clientUp to 3000 events
AC 800M transm. speed to OPC server36-86 events/sec ,113-143 data messages/sec
Comm. modules on CEX bus1
Supply current on CEX busMax 2.4 A
I/O clusters on Modulebus with non-red. CPU1 electrical, 1 optical
I/O clusters on Modulebus with red. CPUNA
I/O capacity on ModulebusMax 24 I/O modules
Modulebus scan rate0 - 100 ms (actual time depending on number of I/O modules)
Supply current on Electrical Modulebus24 V : max 1.0 A 5 V : max 1.5 A
Ethernet channels1
Ethernet interfaceEthernet (IEEE 802.3), 10 Mbit/s, RJ-45, female (8-pole)
Control Network protocolMMS (Manufacturing Message Service) and IAC (Inter Application Communication)
Recommended Control Network backbone100 Mbit/s switched Ethernet
Real-time clock stability100 ppm (approx. 1 h/year)
RS-232C interface2 (one general, 1 for service tool)
RS-232C interface (COM3) (non red. only)RS-232C, 75-19 200 baud, RJ-45 female (8-pole), not opto isolated, full RTS-CTS support
RS-232C interface (COM4) (non red. only)RS-232C, 9 600 baud, RJ-45 female (8-pole), opto isolated, no RTS-CTS support
Temperature, Operating0 to +55 °C (+32 to +131 °F)
Temperature, Storage-40 to +70 °C (-40 to +158 °F)
Temperature changes3 °C/minutes according to IEC/EN 61131-2
Pollution degreeDegree 2 according to IEC/EN 61131-2
Corrosion protectionG3 compliant to ISA 71.04
Relative humidity5 to 95 %, non-condensing
Emitted noise< 55 dB (A)
Vibration10 < f < 50 Hz: 0.0375 mm amplitude, 50 < f < 150 Hz: 0.5 g acceleration, 5 < f < 500 Hz: 0.2 g acceleration
Rated Isolation Voltage50 V
Dielectric test voltage500 V a.c.
Protection classIP20 according to EN 60529, IEC 529
Altitude2000 m according to IEC/EN 61131-2
Emission & ImmunityEN 61000-6-4, EN 61000-6-2
CE MarkYes
Electrical SafetyEN 50178, IEC 61131-2, UL 61010-1, UL 61010-2-201
Hazardous locationcULus Class 1, Zone 2, AEx nA IIC T4, ExnA IIC T4Gc X
Marine certificatesABS, BV, DNV, LR, CCS
TUV ApprovalNo
RoHS complianceEU RoHS, UAE RoHS, CN RoHS
WEEE complianceDIRECTIVE/2012/19/EU
Width119 mm
Height186 mm
Depth135 mm
Weight (including base)1100 g
TECHNICAL INFORMATION

Features

  • MPC860 microprocessor operating at a clock frequency of 24 MHz.
  • Executes 1000 boolean operations in 0.46 ms.
  • Provides 12 MB total memory with 6.253 MB RAM allocated for control applications.
  • Accommodates up to 32 applications and 32 cyclic tasks per controller.
  • Directly connects one CEX bus communication module and up to 24 Modulebus modules.
  • Integrated 3.6 V lithium backup battery preserves memory and real-time clock functions.
TECHNICAL INFORMATION

Applications

  • Industrial process automation systems requiring compact single-controller execution.
  • Direct field device interfacing across electrical and optical Modulebus clusters.
  • Centralized control cabinets operating under G3 harsh environmental conditions.
TECHNICAL INFORMATION

Connections / Interfaces

  • One RJ-45 female Ethernet port supporting MMS and IAC at 10 Mbit/s.
  • COM3 non-isolated RS-232C RJ-45 female port with RTS-CTS support up to 19 200 baud.
  • COM4 optically isolated RS-232C RJ-45 female port operating at 9 600 baud.
  • Modulebus interface supporting one electrical cluster and one optical cluster.
  • CEX bus connector supplying up to 2.4 A for one external communication module.
TECHNICAL INFORMATION

Installation Guidelines

  1. Mount the module vertically on a standard DIN rail inside an IP20 cabinet enclosure.
  2. Maintain ambient operating temperatures between 0 °C and 55 °C.
  3. Ensure temperature variations do not exceed 3 °C per minute.
  4. Provide a 24 V DC power feed compliant with the 19.2 to 30 V DC range.
TECHNICAL INFORMATION

Configuration Guidelines

  1. Configure controller parameters and project logic through ABB System 800xA control software.
  2. Assign application cycle times down to 1 ms based on field response requirements.
  3. Use the front INIT push button to initialize firmware parameters when required.
TECHNICAL INFORMATION

Compatibility

  • Compatible with ABB System 800xA control networks from version 5.1 FP4.
  • Integrates with up to 24 Modulebus I/O modules across electrical and optical clusters.
  • Operates with compatible ABB CEX bus communication interfaces.
TECHNICAL INFORMATION

Compliance and Certifications

  • CE Mark compliant for European industrial standards.
  • Hazardous location certified for cULus Class 1, Zone 2, AEx nA IIC T4.
  • Marine certifications from ABS, BV, DNV, LR, and CCS.
  • Corrosion protection meeting ISA 71.04 G3 compliance.
  • Electromagnetic compatibility verified to EN 61000-6-2 and EN 61000-6-4.
COMPATIBILITY

Compatibility & Replacement

COMPATIBLE MODELSCompatible with ABB System 800xA control networks from version 5.1 FP4. Integrates with up to 24 Modulebus I/O modules across electrical and optical clusters. Operates with compatible ABB CEX bus communication interfaces.

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.
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ORDERING PROCESS

From RFQ to Dispatch

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PRODUCT FAQ

Frequently Asked Questions

Does the PM851AK01 support redundant CPU configurations?
No, the PM851AK01 is designed strictly for non-redundant AC800M controller configurations.
How many Modulebus I/O modules can the PM851AK01 support?
The module can handle up to 24 I/O modules across one electrical and one optical cluster.
What reference pricing is observed for the PM851AK01 3BSE066485R1?
Market observations indicate reference pricing of approximately $1,890 for refurbished units. These figures are indicative market reference pricing only and are not a final quotation.
Condition Confirmed Before OrderQuoted condition is confirmed before payment and dispatch.
Warranty & Returns12 Months standard warranty and 30-day return request period.International DeliveryShipping method is selected according to destination and shipment size.
Technical Source PolicySpecifications are published only when supported by product or manufacturer references.
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