1. Product Overview

The Process Control Module is a core controller unit within the ABB Symphony® Plus distributed control system. It performs logic execution, loop regulation, data acquisition, equipment interlocking, and coordination between field devices and supervisory systems.
Using the original ABB specification code 3BHE028959R0101, the module ensures seamless interaction with existing Symphony® Plus platforms and I/O infrastructures.

2. Key Technical Parameters
2.1 Electrical & Communication Parameters

Power Supply:

Redundant dual-power design

DC 24 V ±10% or AC 110/220 V ±10%

Wide-range voltage compatibility for diverse industrial power environments

Power Consumption:

Typical operation ≤ 35 W

Standby ≤ 8 W (optimized for long-duration continuous operation)

Supported Communication Protocols:

ABB H1 bus

PROFIBUS DP/PA

Modbus RTU / Modbus TCP

EtherNet/IP

OPC UA

Enables direct communication with field transmitters, valves, PLCs, SCADA systems, and third-party industrial equipment

Communication Interfaces:

4 × Gigabit Ethernet ports (supporting redundant ring or star topologies)

6 × RS-485 serial ports

2 × H1 bus interfaces

1 × USB debugging/service port

Control Cycle:

Minimum cycle time 5 ms, enabling high-speed closed-loop control for precision pressure, flow, and motion regulation

2.2 Control Capability & I/O Adaptation

Supports up to 128 control loops including PID, cascade, feedforward, and ratio control — suitable for large-scale, multivariable process systems

Integrated 2048 logical I/O points (DI/DO/AI/AO), expandable up to 8192 points, meeting the needs of million-ton production lines and large power systems

Fully compatible with ABB Symphony® Plus I/O modules:

AI810 / AI830

AO810 / AO830

DI810 / DI830

Supports hot-swap expansion without system shutdown

Supports remote I/O station connection, with a maximum transmission distance up to 10 km

3. Environmental & Physical Specifications

Operating Temperature: –10 °C ~ +60 °C

Storage Temperature: –40 °C ~ +85 °C

Humidity: 5%–95% RH (non-condensing)

Protection Rating: IP20, suitable for cabinet-level installation

Dimensions: 220 × 180 × 80 mm (L × W × H)

Weight: approx. 1.2 kg

Installation: Standard DIN-rail or cabinet mounting

4. Reliability & Protection Design

Dual-controller hot redundancy (1:1 configuration) with switching time ≤ 50 ms, ensuring continuous operation during controller failure or maintenance

Built-in hardware watchdog, overvoltage/overcurrent protection, and enhanced EMC immunity in compliance with IEC 61000 standards

MTBF ≥ 100,000 hours, meeting high-availability requirements in petrochemical, power generation, metallurgy, water treatment, and other mission-critical industrial applications

ABB PPC905AE101 3BHE014070R0101｜Process Control Unit｜