Description

FOXBORO P0926GL-0C

1. Basic Information

FOXBORO P0926GL-0C is a core control processor module of the I/A Series Distributed Control System (DCS). Specially designed for industrial process control, it serves as a high-performance and high-reliability distributed control core. It is responsible for regulation control, logic control, timing control and sequence control of industrial processes, acting as essential equipment to realize automatic operation, real-time data acquisition and safety monitoring in large-scale industrial sites.

As the control hub of I/A Series system, it collects real-time field process variable data such as temperature, pressure and flow rate, executes complex control algorithms and outputs control commands to drive field actuators. Featuring redundant design and multi-protocol communication capability, it ensures continuous and stable system operation as well as coordinated operation of multiple devices and systems. With flexible expandability, it meets control demands of industrial sites of different scales and guarantees safe and efficient production processes.

Adopting industrial reinforced design, this module supports hot standby redundancy and power redundancy to adapt to harsh industrial environments. It is fully compatible with full-series Foxboro I/A Series I/O modules and upper-level monitoring software, and supports various industrial communication protocols for seamless integration into existing industrial control systems. It is widely used in process control applications including petrochemical, power energy, metallurgy, municipal administration and environmental protection industries.

2. Technical Specifications

2.1 Core Electrical & Control Specifications

Processor: Equipped with 32-bit industrial-grade RISC processor; instruction execution speed reaches 0.1μs per Boolean instruction and 0.5μs per floating-point instruction, enabling fast processing of complex control algorithms and massive real-time data to ensure timely control response.
Memory Configuration: 8 MB program memory and 4 MB data memory, meeting storage demands of large-scale control programs and real-time data caching, and supporting stable operation of complex control logic.
Power Supply: 24 VDC power supply with power consumption of 10 W. It supports redundant power configuration and reverse polarity protection design to reduce installation errors and ensure stable power supply.
Expansion Capacity: Supports up to 32 Series 200 Fieldbus Modules (FBM), expandable to 128 FBMs via FEM100 fieldbus expansion module; it accommodates maximum 256 I/O points and remote I/O link expansion to fit industrial sites of various scales.
Communication Interfaces & Protocols: Integrated standard 100 Mbps fiber Ethernet interface, compatible with Ethernet 10/100BaseTX, ControlNet, RS-232 and other interfaces. It supports industrial protocols including Modbus TCP/IP, ControlNet and Ethernet/IP to realize high-speed data interaction with Foxboro Evo control network, third-party systems and field devices.
Redundancy & Fault Tolerance: Adopts dual-module parallel operation architecture with controller hot standby redundancy and power redundancy. The standby module can switch over seamlessly once the main module fails to ensure uninterrupted system operation. Bit-by-bit matching technology verifies data consistency to avoid wrong data transmission and enhance system reliability.
Environmental Adaptability: Operating temperature: 0℃~60℃; Storage temperature: -40℃~85℃; Operating humidity: 5%~95% (non-condensing); Protection class: IP20. Die-cast aluminum housing enables it to adapt to G3-level harsh environments such as heavy dust and strong electromagnetic interference, fully complying with industrial field application standards.

2.2 Physical & Structural Specifications

Installation Mode: Supports standard cabinet mounting and dedicated baseplate mounting, suitable for deployment in industrial control cabinets. It can be densely installed together with same-series modules for convenient system integration and later maintenance.
Dimensions: 140mm × 165mm × 45mm (L × W × H). Compact structure saves cabinet installation space and fits dense multi-module deployment scenarios.
Weight: Approximately 0.6 kg. Lightweight design facilitates on-site installation, disassembly and replacement and reduces maintenance workload.
Enclosure & Connection: Die-cast aluminum housing delivers excellent anti-electromagnetic interference, dustproof and heat dissipation performance against harsh on-site conditions. Interfaces are reasonably divided for power supply, communication and I/O expansion, enabling convenient wiring and firm connection with anti-loose structure to stabilize signal transmission and power supply.
Product Features: Modular design allows independent integration into I/A Series systems and seamless coordination with FCP270 controllers, FEM100 expansion modules and other same-series devices. Complete status indicators directly display power status, communication status, running status and fault information for rapid on-site troubleshooting.

2.3 Core Functions & Compatibility Specifications

Core Functions: Industrial process regulation, logic control, timing control and sequence control; real-time field process variable data collection; alarm detection and notification to ensure production safety; coordinated control of multiple devices and systems as well as remote monitoring and data interaction; built-in redundancy and fault tolerance to guarantee non-stop system operation.
Integrated Features: Highly integrated design enables single module to realize core functions including control, data acquisition, communication and redundant switching without additional accessories, simplifying system construction and lowering deployment costs. Built-in data verification and fault tolerance mechanisms improve accuracy of data transmission and control commands.
Compatibility: Fully compatible with full-series Foxboro I/A Series fieldbus modules (FBM), expansion modules (FEM100) and upper monitoring software such as Foxboro InTouch and Wonderware System Platform. It matches PLC and DCS systems of Siemens, Rockwell Automation and other brands to support cross-brand data interaction, and can be directly connected with field devices such as smart transmitters and regulating valves to reduce signal conversion links.
Reliability & Practicability: Industrial reinforced design features outstanding vibration resistance and anti-electromagnetic interference performance with low long-term failure rate to cut system maintenance costs. Hot standby redundant switching ensures uninterrupted production. Intuitive indicator lights enable fast on-site fault location and handling. Modular expansion supports flexible upgrading along with production scale expansion and reduces system upgrade costs.

3. Working Principle

System Initialization & Parameter ConfigurationAfter being connected to I/A Series DCS and powered on, P0926GL-0C automatically completes self-inspection and system initialization to check the operating status of its own processor, memory, communication interfaces and redundant units, and enters ready state without abnormalities. Engineers configure control logic, I/O parameters, communication protocols, redundancy modes and alarm thresholds via upper monitoring software or configuration tools to complete matching between the module, field devices and upper systems.
Process Data Acquisition & ProcessingThe module collects real-time field process variables including temperature, pressure and flow rate through Fieldbus Modules (FBM). Internal data verification and filtering eliminate noise interference to ensure data accuracy. It also monitors operating status of field equipment and triggers alarms to upper systems promptly once parameters exceed threshold values for timely handling.

Control Command Execution & Coordinated ControlBased on preset control logic and algorithms, the module analyzes collected process data, generates control commands and transmits them to actuators such as regulating valves and dosing pumps via fieldbus to realize precise industrial process control. Meanwhile, it communicates with Foxboro Evo control network and third-party systems through Ethernet interfaces to achieve coordinated operation of multiple modules and systems and ensure synchronization of the whole production process.

Redundant Switchover & Fault Tolerance GuaranteeThe module adopts dual-module hot standby redundant architecture. The main module and standby module synchronize operating data in real time. Once the main module encounters faults such as processor failure, communication interruption or abnormal power supply, the standby module switches over seamlessly to take over all control functions and ensure continuous control processes. Bit-by-bit matching technology verifies data consistency in real time to prevent incorrect control commands and secure system operation.

Status Monitoring & Fault DiagnosisThe module monitors real-time operating status including processor, memory, power supply and communication, as well as status of fieldbus modules and I/O links, and feeds back operating information via indicator lights and upper systems. It automatically records fault information, triggers corresponding alarms and activates redundant switchover (if configured) upon fault detection, helping engineers quickly locate and eliminate faults to shorten downtime.

4. Application Scenarios

4.1 Petrochemical Industry

It is applied to control production processes such as petroleum refining and chemical synthesis. As the system control core, it collects key parameters including reactor temperature, pressure and material ratio, executes regulation and logic control, and drives actuators like regulating valves and feed pumps to realize automatic production operation. Redundant design effectively avoids production shutdown caused by equipment faults and ensures production safety in flammable and explosive environments.

4.2 Power Energy Industry

It is used in thermal power plants, hydropower stations, substations and other occasions to control water feed pumps, forced draft fans, isolating switches and other equipment. It collects boiler temperature, steam pressure, grid parameters and other data to realize automatic control and monitoring of power generation and power transmission processes. Redundant communication and power supply design guarantee continuous and stable power supply and improve overall power system operational reliability.

4.3 Metallurgical Industry

It adapts to production processes including iron and steel smelting and non-ferrous metal processing. It controls key parameters such as smelting furnace temperature and rolling mill pressure and drives relevant actuators to achieve precise production process control. Its strong anti-interference capability and harsh environment adaptability resist heavy dust and strong electromagnetic interference in metallurgical workshops, stabilize system operation and improve product quality consistency.

4.4 Municipal Administration & Environmental Protection Industry

It is deployed in urban sewage treatment, central heating and other systems to control dosing pumps, aeration fans, flow regulating valves and other equipment. It automatically adjusts operating status according to water quality, ambient temperature and other parameters to meet discharge standards and realize efficient energy utilization. Modular expandability meets capacity expansion demands of municipal systems, and long-term operational stability satisfies continuous operation requirements of municipal facilities.

4.5 General Industrial Process Control

It is suitable for automatic control of various general industrial production processes such as food processing, pharmaceutical production and building material manufacturing. Serving as the control core, it realizes precise regulation of production flows and collects key process parameters to guarantee production quality and efficiency. Its wide compatibility enables seamless access to existing control systems and reduces system integration costs.