Product Overview

• PN: PM803F
• Material Code: 3BDH000530R1
• Brand: ABB
• Series: Freelance AC800F DCS Distributed Control System
• Type: Field Controller Base Unit / CPU Main Control Module

• Function: The central operation core of AC800F system. It loads control programs to complete interlock logic, closed-loop PID regulation, sequence control and process parameter calculation. It communicates with S800 I/O modules via backplane bus, collects field analog and digital signals, and sends control commands to on-site actuators. It establishes data interaction with operator stations and engineering stations through Ethernet, supports dual CPU redundant switching to avoid system shutdown caused by single point failure, and realizes long-term unattended stable operation of process control loops.

• 
  

Core Features

• Equipped with 32-bit RISC superscalar processor, 16MB battery-backed SDRAM memory, with EDC memory error detection and correction function
• Built-in multi communication interfaces including Ethernet and RS232 serial port, compatible with Modbus TCP, Profibus DP, Foundation Fieldbus and other mainstream industrial protocols
• Integrated multi-slot backplane base, allowing direct insertion of communication modules and I/O expansion cards, supporting hot plug replacement of expansion modules
• Complete hardware self-diagnosis mechanism, front panel status indicators display power, running, communication and fault alarm information
• Supports dual-controller redundant configuration, automatic bumpless switching during main unit fault without disturbing production process
• PCB conformal coating treatment, dustproof, moistureproof and anti-electromagnetic interference, adaptable to control room long-term continuous operation

• No preloaded firmware, requires program download and configuration via Control Builder M V7.1SP2a or above software

• 
  

Technical Specifications

• Working Power Supply: 24VDC
• Max Power Consumption: 7.8W
• Instruction Execution Speed: Binary & 16-bit arithmetic instructions less than 1.0ms per thousand; 32-bit arithmetic instructions less than 1.5ms per thousand
• Operating Temperature Range: -25℃ ~ +70℃
• Storage Temperature: -40℃ ~ +85℃
• Overall Dimension: 202mm × 239mm × 164mm
• Net Weight: 1.6kg
• HS Code: 85371090
• Certification: CE, UL

• Supply Status: Original manufacturer conventional supply, brand new original sealed products and fully tested refurbished spare parts available in stock

• 
  

Compatibility

• Applicable System: ABB Freelance AC800F DCS system
• Matching Accessories: SA801F power supply module, S800 series I/O terminal units and I/O modules, Profibus/Ethernet communication interface cards
• Programming Software: ABB Control Builder M configuration tool
• Expansion Mode: Expand I/O points by adding PM8M22, PM8M26 and other expansion sub-modules

• Replacement Note: Can be used to replace PM802F and other earlier compatible CPU base units for cabinet upgrade and maintenance

• 
  

Application

• Whole-process automatic control for medium and small petrochemical, chemical synthesis and pharmaceutical production lines
• Boiler auxiliary system, water treatment and flue gas desulfurization denitrification control in thermal power plants
• Automation monitoring and interlock control for metallurgy, water supply and sewage treatment projects
• Spare part replacement and program maintenance renovation for on-site old ABB Freelance DCS control cabinets