ABB PM803F 分布式控制模块

PM803F（物料号：3BDH000530R1） 是 ABB Freelance DCS 系统旗下AC800F 系列的核心 CPU 控制器模块，俗称 “分布式控制模块”，用于中小规模流程工业的分布式控制与数据采集。

典型用途：化工、水处理、冶金、制药、电力等中小型 DCS/PLC 混合控制场景

通信接口：双以

太网、RS-232/485、CAN（适配 Freelance I/O）

最后购买：2022 年已宣布停止生产，无新订单承接

ABB PM803F distributed control module

PM803F (material number: 3BDH000530R1) is the core CPU controller module of the AC800F series under ABB Freelance DCS system, commonly known as the "distributed control module", used for distributed control and data acquisition in small and medium-sized process industries.

1、 Core positioning and functions

Brand/Series: ABB Freelance → AC800F Controller Family

Positioning: Fieldbus Controller (DCS CPU), responsible for logical operations, I/O control, communication, and redundancy coordination

Architecture: 32-bit RISC processor, 16MB battery backed RAM, no built-in system firmware (requires loading)

Redundancy: Supports CPU hot standby redundancy, power redundancy, and network redundancy

Typical applications: Small and medium-sized DCS/PLC hybrid control scenarios in chemical, water treatment, metallurgy, pharmaceuticals, power, and other industries

2、 Key technical parameters

Model: PM803F (3BDH000530R1)

Processor: 32-bit RISC, clock speed 400MHz

Memory: 16MB SD-RAM (battery buffered)

Storage: No built-in Flash, relies on external/network loading

Power supply: 24VDC (redundant power supply)

Power consumption: ≤ 15W

Communication interface: Dual

Ethernet, RS-232/485, CAN (compatible with Freelance I/O)

Working temperature: 0 ° C~+60 ° C (industrial grade)

Size/Weight: 164 × 202 × 239mm/1.6kg

Software requirements: CBF V7.1SP2a+configuration software is required

3、 Production stoppage and supply status (as of May 2026)

Original factory status: Officially discontinued (EOL), AC800F platform enters the end of its lifecycle (classic/limited support stage)

Last purchase: Production has been announced to cease in 2022, with no new orders accepted

Market inventory:

Brand new original: scarce, high price, long delivery time (3-6 months)

Refurbished/Used: Adequate supply, 6-12 month warranty, high cost-effectiveness

Alternative models: Upgrade to AC800M series PM851AK01 or Freelance new generation controller

4、 Comparison with the same series (PM802F vs PM803F)

PM802F: Classic model with 5-10% higher performance, completely eliminated (Obsolvete)

PM803F: Later version, cost optimized, slightly lower performance, current mainstream spare parts model

5、 Application scenarios

Small and medium-sized DCS systems (I/O points ≤ 1000)

Distributed Control in Chemical Plants/Water Treatment Plants

Monitoring of power auxiliary equipment/metallurgical workshop