Model PM857K01 is ABB article 3BSE088385R1: a 96 MHz, 32 MB AC 800M High Integrity processor unit with a maximum of 128 I/O signals.
Item NO.:
PM857K01Brand/ Manufacturer:
ABBDimensions:
119 × 186 × 135 mm (W × H × D)Weight:
1200 g including baseCountry of Origin: :
Not specified in the cited ABB hardware selectorDescription:
AC 800M High Integrity processor; 3BSE088385R1ABB specifies SM812 and SIL-certified software for High Integrity functionality. Configure and validate the complete application according to the applicable ABB Safety Manual. K01 is listed as non-redundant even though the PM857 platform supports redundant configurations.
Engineering note: The 0.17 ms figure applies to 1,000 Boolean operations; it is not a guaranteed whole-application scan time. ABB lists a 10 ms application-program cycle time and up to 32 controller tasks. Confirm the project design against the current ABB documentation.
Installation planning
Confirm the PM857K01 enclosure, cabinet airflow, baseplate mounting and operating environment before installation.
Storage and handling
Keep the controller, baseplate and supplied terminators protected from impact, contamination, moisture and electrostatic discharge.
Send the full part number, required quantity and destination. Request current photos, approval markings and connector details before ordering.
The ABB PM857K01 is article 3BSE088385R1, an AC 800M High Integrity processor unit with a 96 MHz MPC866 CPU. The hardware selector lists the K01 configuration as non-redundant and specifies 32 MB memory, including 22.184 MB available for applications.
For High Integrity functionality, ABB specifies SM812 and SIL-certified software. The application must follow the applicable ABB Safety Manual; the presence of a processor alone does not certify the installed system.
Official reference checked for this page: ABB publishes a dedicated PM857K01 entry with article number 3BSE088385R1, technical characteristics, environmental limits and dimensional data.
The product entry distinguishes the non-redundant K01 configuration from the platform capability to support CPU redundancy. Both points matter when preparing a replacement specification.
Availability note: An official product listing does not establish distributor stock or a shipment date. Request a current quotation and confirm the supplied article and configuration before ordering.
Complete these six model-specific checks against the installed architecture and the applicable ABB project documentation before replacement or commissioning.
ABB lists up to 96 Modulebus I/O modules with a single PM857 and 84 with redundant PM857 CPUs. Neither value changes the separate maximum of 128 I/O signals in total.
The Ethernet interfaces are listed at 10 Mbit/s. ABB recommends a 100 Mbit/s switched Control Network backbone; the recommended backbone is not the speed rating of the controller ports.
ABB identifies PM857K01 as article 3BSE088385R1 in its AC 800M hardware selector. Use both references when checking a quotation or the supplied nameplate.
The PM857K01 entry lists Redundancy: No. The PM857 controller platform supports CPU redundancy, but that platform capability should not be confused with the supplied K01 configuration.
No. ABB states that High Integrity functionality requires an SM812 module and SIL-certified software. The safety application must be configured according to the applicable ABB Safety Manual.
ABB specifies a maximum of 128 I/O signals in total. Its separate Modulebus limits are up to 96 I/O modules for a single PM857 or 84 in a redundant configuration; these module counts do not increase the 128-signal limit.
ABB lists a 96 MHz MPC866 processor, 32 MB total memory and 22.184 MB application RAM. The published time for 1,000 Boolean operations is 0.17 ms; complete application timing depends on the controller program.
The nominal supply is 24 V DC, with a 19.2–30 V DC range. ABB lists 210 mA typical and 360 mA maximum current at 24 V, operation from 0 to +55°C, and 5–95% non-condensing relative humidity.
CN1 and CN2 are RJ45 Control Network Ethernet ports. COM3 is RS-232C with modem control signals; isolated COM4 serves the configuration tool. ABB lists 10 Mbit/s Ethernet interfaces and a recommended 100 Mbit/s switched Control Network backbone.
ABB states that PM857 High Integrity operation uses an SM812 module together with SIL-certified software. Confirm the exact companion module, software release and Safety Manual requirements for the installed project.
Match PM857K01 and article 3BSE088385R1, the non-redundant K01 arrangement, the TP830 baseplate, supplied terminators, application backup, communication interfaces and the approved safety lifecycle procedure.
ABB lists IP20 protection, operation from 0 to +55 C and storage from -40 to +70 C. Use a suitable cabinet, provide thermal management, prevent condensation and apply grounded electrostatic-discharge precautions.
The two PDFs below are hosted on dcsmodule.com and were prepared by Moore Automation from the exact manufacturer product record and applicable official publications. They are independent references, not manufacturer-issued manuals.
Article-specific identification, lifecycle context, application guidance and procurement checks for this exact catalog number.
OPEN SITE PDF →MOORE AUTOMATION PDFModel-specific specification matrix, installation and commissioning checks, plus an official-source trace for engineering review.
OPEN TECHNICAL DATA PDF →Ask for current product photos showing PM857K01 and article 3BSE088385R1, the TP830 baseplate, supplied terminators, connectors, packaging and current condition.
| Specification | ABB published value / configuration note |
|---|---|
| Displayed model | PM857K01 — ABB article 3BSE088385R1 |
| System family | AC 800M High Integrity |
| Processor | MPC866 · 96 MHz |
| Installed memory | 32 MB |
| Application RAM | 22.184 MB |
| Power supply | 24 V DC nominal; 19.2–30 V DC |
| Current at 24 V | 210 mA typical / 360 mA maximum |
| Power dissipation | 5.1 W typical / 8.6 W maximum |
| K01 configuration | Non-redundant |
| High Integrity requirement | SM812 + SIL-certified software + Safety Manual configuration |
Official source: ABB PM857K01 hardware selector. Operating range: 0 to +55°C; protection: IP20; dimensions: 119 × 186 × 135 mm (W × H × D); weight including base: 1,200 g.
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