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Overview

The ABB PM866A Processor Unit is a high-performance industrial controller designed for S800 I/O systems. It features a 133 MHz MPC866 microprocessor and 64 MB RAM, supporting up to 12 S800 I/O units. The unit provides robust redundancy options, flexible connectivity, and reliable performance for industrial automation applications.

Key Features

• High-Speed Microprocessor: MPC866 running at 133 MHz for fast and precise control.
• Memory:
  • 64 MB RAM with internal/external battery backup.
  • 4 MB Flash PROM for firmware and application storage.
• Connectivity: Supports up to 12 S800 I/O units via electrical ModuleBus.
• Communication Ports:
  • CN1/CN2: Ethernet (IEEE 802.3, 10BaseT).
  • COM3: RS-232C serial port with modem support.
  • COM4: RS-232C serial port for service tools.
  • Expandable communication through additional interface units.
• Redundancy:
  • Redundancy Control Link for backup CPU configurations.
  • Switch-over time to backup CPU: <10 ms.
• Storage: Compact Flash interface for application loading and cold retain data.
• Power Reservoir: 5 ms internal power reservoir for controlled shutdown.

Technical Specifications

Power Requirements

• Input Voltage: 24 V DC nominal (19.2–30 V DC).
• Power Dissipation: 5.1 W typical (8.6 W with full ModuleBus/CEX-Bus supply).
• Current Consumption: 210 mA typical (360 mA max).

Redundant Power Supply Inputs

• Max Input Voltage: 30 V
• Logical “1” voltage: ≥15 V
• Logical “0” voltage: ≤8 V

Dimensions and Weight

• Dimensions: W 119 × H 186 × D 135 mm (4.7 × 7.3 × 5.3 in)
• Weight: 1.1 kg (2.6 lb)

Backup Time

• Internal Battery: ≥158 hours
• External Battery SB821: ≥15 weeks
• External Battery SB822: ≥16 days
• Recharge Time: ~7 hours (empty battery)

Performance

• Approximately 1.4× the performance of PM864
• Slight performance reduction in redundancy mode

Protection and Compliance

• Protection Rating: IP20 (EN60529, IEC 529)
• EMC Compliance: EMC Directive 2004/108/EC

Ordering and Availability

• Product ID: 3BSE076359R1
• ABB Type Designation: PM866A
• Country of Origin: Sweden
• Minimum Order Quantity: 1 unit
• Stocked At: SELOGVEXPU
• Part Type: New

Applications

The PM866A Processor Unit is suitable for:

• Industrial process automation with S800 I/O systems
• Applications requiring redundancy and high reliability
• Systems needing fast execution and networked I/O control

Details