PM866A-2 Redundant main controller
PM866A-2 is a controller product from ABB, 3BSE081637R1 (also denoted as PM866AK02). Here is its detailed information:
Basic Parameters
- Module Type: Redundant main controller
- Processor Type: MPC866
- Clock Frequency: 133MHz
- Memory: 64MB, with 51.389MB of RAM available for application programs
- Firmware Storage Flash: 4MB
- Operating Voltage: 19.2V-30V DC
- Power Consumption: Typical 5.1W, maximum 8.6W
- Current Consumption: Typical 210mA, maximum 360mA (excluding power supply for ModuleBus and CEX Bus)
- Communication Interfaces: 2 RJ45 Ethernet ports, 2 RJ45 serial ports. One of the serial ports is an RS-232C port with modem control signals, and the other is an isolated serial port for connecting configuration tools.
- Protection Class: IP20
Performance Indicators
- Performance for 1000 Boolean Operations: 0.09 milliseconds
- Redundancy Configuration Switching Time: Maximum 10 milliseconds
- Number of Applications per Controller: 32
- Number of Programs per Application: 64
- Number of Diagrams per Application: 128
- Number of Tasks per Controller: 32
- Number of Different Cycle Times: 32 types
- Minimum Cycle Time for Applications: 1 millisecond
Functional Features
- Redundancy Support: Supports CPU redundancy, providing redundancy protection for CPU, CEX-Bus, communication interfaces, and S800 I/O, etc., to improve system availability.
- Comprehensive Certifications: Has ISA Secure certification and complete EMC certifications.
- Easy Installation: Adopts a simple DIN rail connection and disassembly procedure with a unique sliding and locking mechanism.
- Flexible Configuration: Can be configured via 800xA Control Builder.
- Qualified Hardware: Hardware based on communication connection standards such as Ethernet and PROFIBUS DP, with built-in redundant Ethernet communication ports.
- Segmented Bus: Uses a pair of BC810/BC820 segmented CEX buses.

The company has multiple main brands, and if you have other brand requirements, you can also send them to customer service for inquiry.
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