The PM856AK01 controller unit (item number 3BSE066490R1) is a high-performance PLC (Programmable Logic Controller) module launched by ABB, designed specifically for the fields of industrial automation and process control. The following is the detailed information of the module:

1、 Basic Information
Model: PM856AK01 (or PM856A K01)
Item number: 3BSE066490R1
Type: DC power module/processor module
Application areas: Industrial automation fields such as manufacturing, energy, chemical, water treatment, etc

2、 Technical specifications
Performance parameters:
Clock frequency: 24 MHz
Boolean operation capability: 1000 Boolean operations, 0.46 milliseconds
Memory: 16 MB (from 800xA 5.1 FP4)
RAM: 10.337 MB (for application programs)
Flash memory: 2 MB (for firmware storage)
Power supply and power consumption:
Power input: 24V DC (19.2-30V DC)
Power consumption:+ 24V (typical/maximum) 180/300mA, maximum 7.2 watts
I/O and Communication:
CEX bus: supports 12 single CEX bus modules, with a maximum power supply current of 2.4A
Modulabus: I/O capacity up to 96 modules, scan rate 0~100ms
Ethernet interface: IEEE 802.3, 10 Mbit/s, RJ-45 female head (8-pole)
RS-232C interface: 2 (1 universal, 1 for maintenance tools)
Tasks and Programs:
Number of applications per controller: 32
Number of programs per application: 64
Number of charts per application: 128
Number of tasks per controller: 32
Cycle time for each application: as low as 1ms

3、 Design Features
Modular design: allows for gradual expansion to meet different application requirements.
Reliability and fault diagnosis: Equipped with reliable fault diagnosis procedures for easy maintenance.
IP20 protection: No storage module required, providing excellent protection performance.
Configurability: Supports 800xA Control Builder, facilitating system integration and configuration.
4、 Communication and Connection
Control network protocols: MMS (Manufacturing Message Service) and IAC (Inter Application Communication).
Communication interface: Based on standard hardware, supporting communication methods such as Ethernet and PROFIBUS DP.
5、 Physical characteristics
Dimensions: Width 119 millimeters (4.7 inches), height 186 millimeters (7.3 inches), depth 135 millimeters (5.3 inches).
6、 Application advantages
High performance: Suitable for the needs of complex industrial automation systems.
High reliability: Ensure stable system operation and reduce downtime.
Wide compatibility: Supports multiple communication protocols for easy integration with other devices

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