ABB PM803F

Product Features

ABB PM803F uses the same Super Scalar RISC microprocessor as the PM802F (up to 150 MIPS) and is equipped with 16K internal CPU cache RAM (with error detection and correction).

ABB PM803F features 16MB synchronous dynamic RAM (for real-time data and configuration, with battery backup), 8MB Flash EPROM (32-bit word length), supporting larger-scale project operations with reduced buffering time compared to the PM802F.

ABB PM803F supports 4 fieldbus module slots (F1-F4), compatible with PROFIBUS-DP (FI 830F), CAN (FI 810F), serial interface (FI 820F), and other modules, capable of connecting up to 126 PROFIBUS slave stations.

ABB PM803F has 2 Ethernet module slots (E1-E2), supporting 10Base2 (EI 811F), AUI (EI 812F), 10BaseT (EI 813F), etc., with a transmission rate of 10 Mbit/s, CPU overhead < 4%, but no battery backup, requiring specific hardware support.

ABB PM803F can be implemented using two AC 800F units, with redundant links synchronizing data via the second Ethernet module. In the event of a primary unit failure, the secondary unit seamlessly takes over (without disruption).

ABB PM803F supports 24V DC dual power supply (e.g., SD 812F) and, when used with the RLM01 module, enables PROFIBUS line redundancy.

RAM data is backed up via the Ethernet module or battery module (AM 811F). The new battery provides ≥10 days of runtime (PM803F) and ≥5 hours after low-battery warning.  

Product Using Principle

Communication with the operator station/engineering station is achieved via the first Ethernet module (system bus), ABB PM803F supports configuration download and status reporting, field device communication is accomplished through four fieldbus slots, compatible with multi-protocol parallel processing.

ABB PM803F synchronizes configuration and real-time data with the AC 800F via the Ethernet module, in the event of a main unit failure, the unit immediately takes over to ensure control continuity. PROFIBUS line redundancy is achieved by converting a single line to a dual redundant line via the RLM01 module.

In the event of a power outage, RAM data is maintained by power from the Ethernet module or battery module to prevent configuration loss. When the battery is low, an LED alarm alerts the user to replace it.

Product Application

ABB PM803F can be used in large-scale process industries, complex discrete manufacturing, infrastructure, and energy management.

Chemical / Petrochemical: Cluster control of large-scale reaction equipment, long-distance pipeline monitoring (connecting hundreds of sensors and valves, with real-time interaction via PROFIBUS-DP).

Power Industry: Coordinated control of boilers and turbines in thermal power plants, integrated with SCADA systems via Ethernet, supporting redundant designs to ensure continuous operation.

Automotive assembly plants: Multi-robot coordination on welding/painting production lines (connected to Freelance 2000 I/O via CAN module FI 810F to achieve motion synchronization).

Semiconductor manufacturing: Environmental control of multiple cleanroom devices (lithography machines, coating machines) via FF/HSE module (FI 840F) for high-speed data exchange.

Urban water treatment: Multi-stage (settling tanks, filtration tanks) interlocked control in large wastewater treatment plants, with redundant design to prevent downtime from affecting water quality.

Data centers: Precision air conditioning and UPS power group control, integrated with the BMS system via Ethernet modules (EI 813F) to optimize energy consumption.

Product Parameter

The following is ABB PM803F Base Unit detail.