ABB 3BHT300005R1

Description

Detailed Parameter Table

ABB 3BHT300005R1

Product Introduction

The 3BHT300005R1 is a key processor module from ABB’s Advant OCS (Open Control System), designed to serve as the central controller in industrial automation applications. It executes control logic, processes data from field devices, and coordinates communication with I/O modules, HMIs, and external systems, making it essential for regulating processes in power generation, chemical processing, and manufacturing.

As a legacy but reliable component, this module combines a 32-bit RISC processor with support for industry-standard programming languages (IEC 61131-3) and ABB’s proprietary Control Language (ACL), ensuring compatibility with both modern and legacy control strategies. Its communication interfaces (RS-485, Ethernet) enable seamless integration with Modbus devices and networked systems, while 1+1 hot standby capability minimizes downtime in mission-critical operations. Whether controlling a boiler’s combustion process or regulating a batch reactor’s temperature, the 3BHT300005R1 delivers stable and precise performance, maintaining process integrity in demanding industrial environments.

Core Advantages and Technical Highlights

Legacy system compatibility
The 3BHT300005R1 is designed to integrate with existing Advant OCS components, making it ideal for upgrading or maintaining older automation systems. In a refinery with 20-year-old control infrastructure, this module replaces obsolete processors without requiring a full system overhaul, preserving existing wiring, I/O modules, and program code—reducing upgrade costs by up to 40%.

Dual programming flexibility
Support for IEC 61131-3 (LD, FBD, ST) and ABB’s ACL allows engineers to use familiar programming methods. For example, in a pulp mill’s digester control system:

Ladder Logic (LD) is used for interlock circuits (e.g., emergency shutdown sequences)

Structured Text (ST) implements complex algorithms for chemical dosing calculations
This flexibility simplifies program development and maintenance, even for mixed teams of new and experienced engineers.

Reliable hot standby
With 1+1 hot standby capability, the module ensures uninterrupted operation. In a power plant’s turbine control system, if the primary 3BHT300005R1 fails, the standby module takes over within 50 ms, maintaining control of turbine speed and steam flow—preventing costly trips or equipment damage.

Typical Application Scenarios

In a natural gas processing plant’s compression station:

3BHT300005R1 modules control reciprocating compressors, regulating suction/discharge pressures and cylinder lubrication.

They interface with 3BHT300006R1 analog I/O modules to monitor vibration, temperature, and pressure transducers.

RS-485 communication with Modbus-enabled flow meters ensures accurate gas throughput measurement.

Hot standby configuration guarantees continuous operation, critical for avoiding unplanned shutdowns that disrupt gas supply.

In a paper mill’s papermaking machine control:

The processor module coordinates the forming section, press, and dryer, maintaining sheet thickness and moisture content.

Ethernet connectivity links to HMI600 panels, displaying real-time process data (e.g., basis weight, reel speed) to operators.

Control logic programmed in FBD (Function Block Diagram) adjusts roller pressures and dryer temperatures based on sensor feedback.

Compatibility with legacy I/O modules allows the mill to retain proven field wiring, reducing installation time during upgrades.

ABB 3BHT300005R1

Related Model Recommendations

3BHT300006R1: Analog I/O module that connects field sensors to 3BHT300005R1.

3BHT300007R1: Digital I/O module for interfacing with switches, valves, and motors via the processor.

HMI600: Operator panel compatible with 3BHT300005R1 for visualizing and controlling processes.

3BHT300010R1: Redundancy module enabling 1+1 hot standby for 3BHT300005R1.

Modbus Gateway 3BHT300012R1: Expands 3BHT300005R1’s communication to include TCP/IP for modern SCADA integration.

PM864K01: Modern replacement for 3BHT300005R1 in Advant OCS upgrades, offering enhanced processing power.

Installation, Commissioning and Maintenance Instructions

Installation preparation
Mount the 3BHT300005R1 in the designated slot of the Advant OCS rack, ensuring secure connection to the backplane. Connect 24 V DC power, verifying polarity and voltage within ±10% of 24 V. Attach Ethernet cables for network communication and RS-485 wiring for Modbus devices. For hot standby, install a second module and connect via the redundancy bus using 3BHT300010R1 modules.

Commissioning steps
Load control programs to the 3BHT300005R1 using ABB’s Control Builder software, supporting both IEC 61131-3 and ACL code. Configure communication parameters (IP address for Ethernet, baud rate for RS-485) and map I/O points to field devices. Test functionality by:

Simulating sensor inputs (e.g., a 4-20 mA signal from a pressure transducer) and verifying the module adjusts outputs accordingly.

Triggering a manual switchover in hot standby mode to confirm the standby module assumes control without data loss.

Validating communication with HMI600 panels, ensuring process data displays correctly and operator commands are executed.

Maintenance suggestions
Inspect the 3BHT300005R1 quarterly for loose connections, dust accumulation, or signs of overheating (discolored components). Clean ventilation slots with compressed air to maintain cooling. Monitor processor load via Control Builder—consistent loads above 80% indicate the need for program optimization or module replacement. Back up program files monthly to prevent data loss. Replace the module if:

It fails to communicate with I/O modules or HMIs despite wiring checks.

Program execution becomes erratic (e.g., incorrect output signals).

Redundancy switchover fails during testing.
Use only ABB-approved replacements to ensure compatibility with Advant OCS components.

Service and Guarantee Commitment

The 3BHT300005R1 is supported by ABB’s legacy system service program, with a 1-year warranty for replacement units. ABB’s technical support team provides guidance on programming, troubleshooting, and integration with Advant OCS components, including access to archived documentation and software tools.

Customers receive assistance with migration planning, helping transition from 3BHT300005R1 to modern ABB controllers (e.g., AC800M) when ready. ABB maintains a stock of replacement modules to minimize downtime for critical legacy systems, ensuring continued operation of plants relying on Advant OCS infrastructure. Training on legacy system maintenance is also available, helping technicians maximize the module’s lifespan and reliability.