Description

ABB PP845 3BSE042235R1

The ABB PP845 3BSE042235R1 is one of the core communication modules in the AC800M controller family, primarily used in industrial automation systems to enable multi-protocol communication, data interaction, and system expansion. Its design focuses on high reliability, protocol compatibility, and real-time performance, making it suitable for scenarios such as distributed control systems (DCS), process control, and intelligent manufacturing.

Core Functions and Features

1. Multi-Protocol Communication Capability

Supported Protocols:

Mainstream industrial protocols: Modbus RTU, Modbus TCP, CANopen, EtherNet/IP (requires configuration).
Compatible with third-party devices (e.g., Siemens, Rockwell, Schneider), supporting cross-brand system integration.

Typical Applications:

Connecting field devices such as sensors, variable frequency drives, servo motors, and smart instruments.
Serving as a protocol gateway to enable conversion between different protocol networks (e.g., intercommunication between Modbus and EtherNet/IP).

2. High-Speed Data Transmission and Real-Time Performance

Hardware Configuration:

Built-in high-performance microprocessor supporting real-time data acquisition and low-latency transmission, meeting the needs of high-real-time scenarios such as motion control and high-speed production lines.
Connected to AC800M CPU modules via the MasterBus 300 backplane bus at a transmission rate of up to 10 Mbps to ensure data synchronization efficiency.

Data Processing:

Supports parallel processing of multiple tasks (e.g., simultaneous parsing of Modbus TCP and CANopen data), with built-in buffers to avoid data congestion.

3. Industrial-Grade Reliability Design

Environmental Adaptability:

Operating temperature: -20°C ~ +60°C, adaptable to harsh industrial environments such as high temperature, dust, and electromagnetic interference.
Protection level: IP20 (suitable for installation in control cabinets), compliant with IEC 61000 electromagnetic compatibility standards, and resistant to vibration and shock (compliant with IEC 60068-2 standards).

Fault Diagnosis and Response:

Built-in self-diagnosis function for real-time monitoring of interface status, power voltage, and module temperature.
LED indicators: RUN (operation status), FAULT (fault alarm), COMM (communication status), supporting quick anomaly localization.
Automatic connection retry, log recording, and alarm transmission to SCADA systems via controllers.

4. System Integration and Expansion

Modular Design:

As an expansion module for AC800M controllers, it seamlessly integrates with CPU modules via the backplane bus without additional wiring.
Supports cascading of multiple communication modules to build flexible network topologies (e.g., star, bus).

Installation Method:

DIN Rail mounting, saving control cabinet space and supporting hot-swapping (requires system power-off).

Technical Parameters

Parameter Category	Detailed Specifications
Communication Interfaces	- 2 × RS-485 (supporting Modbus RTU, CANopen) - 1 × Ethernet (10/100 Mbps)
Protocol Support	Modbus RTU/TCP, CANopen, EtherNet/IP (optional), custom protocols (requires programming)
Transmission Rate	- RS-485: Up to 115.2 kbps - Ethernet: Auto-negotiating 10/100 Mbps
Power Supply	- Input voltage: 24 VDC (±20%) - Power consumption: Typical value <5 W
Physical Dimensions	Approximately 100 mm (H) × 25 mm (W) × 150 mm (D)
Compatibility	Compatible with AC800M series CPUs (e.g., PM866, PM867), requiring configuration via Control Builder M software
Working Principle	Controller (AC800M CPU) → PP845 Module → Protocol encapsulation/parsing → Field devices; reverse process Similarly

Typical Application Scenarios

1. Manufacturing Production Lines

Connecting robots, PLCs, and vision inspection devices to achieve real-time status monitoring and equipment collaborative control on production lines (e.g., work order data distribution, fault shutdown linkage).
Case Study: In an automotive final assembly line, the PP845 collects sensor data from each workstation via Modbus TCP, uploads it to the MES system, and simultaneously receives production plan commands from the ERP.

2. Process Automation (Chemical/Power)

Connecting distributed I/O modules or variable frequency drives via CANopen to achieve closed-loop control of complex processes (e.g., PID temperature regulation for chemical reaction kettles).
Supports redundant communication configurations to prevent system paralysis due to single-point failures (e.g., primary/backup module switching in petrochemical applications).

3. Building Automation and Energy Management

Serving as a Modbus/BACnet gateway to integrate HVAC systems, elevators, smart meters, and other devices, enabling energy consumption data collection and linkage control (e.g., automatic adjustment of air conditioning load based on room temperature).

4. Distributed Control Systems (DCS)

In large factories (e.g., power plants, steel mills), cascading multiple PP845 modules to build multi-segment communication networks, enabling regionalized equipment management and cross-regional data sharing.

Selection and Matching Recommendations

1. Hardware Matching

Controllers: Must be used with ABB AC800M series CPU modules (e.g., PM866, PM867), connected via the backplane bus.
Expansion Modules: Can be paired with ABB's I/O modules (e.g., DI810 digital input, AO810 analog output) to implement integrated "communication + control" solutions.

2. Software Support

Configuration Tools: Use ABB Control Builder M for module parameter configuration, protocol mapping, and network topology design.
Debugging Tools: Third-party software such as Modbus Poll (Modbus protocol debugging) and CANoe (CANopen protocol analysis) for on-site debugging assistance.

3. Alternatives and Upgrades

For higher performance or support for emerging protocols (e.g., EtherCAT, PROFINET), consider ABB's new-generation communication modules (e.g., PP880 series).

Difference Comparison with PP875 Module

Dimension	PP845 (3BSE042235R1)	PP875 (3BSE092977R1)
Protocol Support	Basic protocols: Modbus, CANopen, EtherNet/IP (optional)	Optimized support for some emerging protocols (e.g., higher-version EtherNet/IP)
Processing Performance	Suitable for medium-low speed data interaction scenarios	Built-in more powerful microprocessor, supporting real-time control of high-speed production lines
Redundancy Design	Basic redundancy functions	Enhanced redundancy configurations (e.g., dual power supplies, dual communication interfaces)
Application Scenarios	Small-to-medium automation systems, building control	Large-scale DCS, high-end intelligent manufacturing, high-real-time indus

ABB PP845 3BSE042235R1 Operator Panel 10.4"