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PM851

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The PM851 (article number: 3BSE066485R1) is a reliable CPU module designed for ABB’s AC 800M controller series
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Technical specifications for PM851

  • Manufacturer:
    ABB
  • Part Number:
    PM851
  • Product Family:
    ABB Advant OCS and Advant-800xA
  • Product Type:
    3BSE018168R1
  • Total Memory:
    12 MB (from 800xa 5.1 FP 4)
  • RAM for Application:
    6.253 MB (from 800xa 5.1 FP 4)
  • Flash Memory:
    Available for storage
  • Firmware Storage Flash PROM:
    2 MB
  • Clock Frequency:
    24 MHz
  • Performance:
    0.46 ms for 1000 boolean operations
  • Cycle Time:
    Down to 1 ms per application program
  • Weight:
    0.9 kg
  • Estimated shipping dimensions:
    19x12x13.5cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.
Description
The PM851 (article number: 3BSE066485R1) is a reliable CPU module designed for ABB’s AC 800M controller series, featuring a 24 MHz MPC860 processor and 12 MB total memory (6.253 MB available for applications) to deliver efficient performance with 0.46 ms for 1000 boolean operations and cycle times as low as 1 ms per application. It comes with a compact, DIN rail-mountable design using a slide & lock mechanism for easy installation, IP20 protection class, and a built-in 3.6 V lithium backup battery to safeguard data.

Equipped with 2 RJ45 Ethernet ports (only CN1 usable, no redundant Ethernet) and 2 serial ports (one RS-232C with modem control, one isolated for configuration tools), it ensures flexible connectivity, while full EMC certification and modular expandability make it suitable for industrial automation environments. Configurable via 800xA Control Builder, it supports up to 32 applications and 32 tasks, enabling seamless integration into process control systems with reliable operation and simplified fault diagnosis.
Alternative Names
PM851 PM85I
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What type of sensor does the 3300/16 use?
The 3300/16 series uses a vibration and proximity sensor design optimized for turbine, generator, and large rotating machinery monitoring.
What is the operating voltage range?
It operates with a 24 V DC nominal supply, with typical tolerance around ±20%, depending on configuration.
What is the output signal type?
The module provides 4–20 mA analog output, suitable for integration with control systems or monitoring equipment.
What are the temperature limits for operation?
The 3300/16 can typically operate in –20 °C to +70 °C ambient temperatures, with extended ranges possible for specialized enclosures.
How many channels or sensors can one 3300/16 module handle?
Each 3300/16 module is designed to handle one sensor input per channel, with modular configurations allowing multiple modules for multi-channel monitoring.

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