EMERSON 5X00790G01 Compact Controller

I. Basic Information
Brand: EMERSON (formerly Westinghouse)
Model: 5X00790G01
Equipment Model: OCC100 (Ovation Compact Controller) Compact Controller
System: Ovation DCS 5X Series
Position: Small local control processor, used for local closed-loop regulation, logic interlock, remote I/O station local control, can be configured redundantly

Core Hardware Parameters
Processor Performance
Industrial-grade real-time CPU, supporting process control loops, sequential control logic, interlock protection program execution; standard large-capacity flash memory + running memory, supporting program download, power-off data preservation.
Communication Interfaces
Dual redundant RJ45 Ethernet: connect to the Ovation control network to achieve data interaction with the upper computer and main controller
Ovation-specific high-speed backplane bus: connect various AI/AO/DI/DO cards in the local I/O rack
Support Modbus TCP/RTU third-party instrument communication access
Power Supply and Power Consumption
Rack backplane 24VDC power supply, typical power consumption approximately 12W
Environmental Parameters
Operating temperature: -20℃ ~ +70℃
Storage temperature: -40℃ ~ +85℃
Humidity: 5%~95% RH (no condensation), anti-vibration, electromagnetic interference resistance
Hardware Specifications
Standard Ovation rack installation, supports hot swapping; panel with operation, fault, communication, redundant status indicator lights, onboard hardware self-diagnosis function

Main Functional Uses
Small auxiliary control system local independent control: boiler auxiliary equipment, water treatment, denitrification, desulfurization, air compressor, etc. local process units’ closed-loop regulation, sequential start-stop, safety interlock protection.
Remote I/O station local calculation: remote control cabinet no longer relies on the main controller, PID regulation, interlock logic are completed locally by OCC100, reducing the load of the control network.
Third-party equipment data collection and forwarding: access to frequency converters, PLCs, intelligent instruments through Modbus protocol, data uploaded to the Ovation upper monitoring system.
Can be 1:1 hardware redundancy deployment, master and standby controllers can switch without interruption in milliseconds, meeting the safety control requirements of key equipment in power and chemical industries.

Core Product Features
Compact design, occupying small rack space, suitable for on-site local small control cabinet deployment.
Fully compatible with Ovation’s complete 5X series I/O cards, can freely expand measurement points with analog and digital modules.
Supports online program download, online diagnosis, fault channels, communication abnormalities, CPU abnormalities can be alarmed and located on the upper computer.
Complies with NERC, IEC 61508 industrial safety standards, mainstream DCS local controllers for fire power, oil and gas, metallurgy, water treatment.

Typical Application Scenarios
De-sulfurization and denitrification systems in thermal power plants, chemical water treatment, air compressor systems, gas boilers, pumping stations, oil and gas skid-mounted devices, auxiliary lines in metallurgy local DCS control station.