Description
Interface Configuration
Ethernet: 1 × 10/100 Mbps RJ45, supports Modbus TCP, IEC 60870-5-104
Serial Port: Multiplexed RS-232/RS-485 interface, for Modbus RTU and on-site commissioning
I/O Bus: PROFIBUS DP bus, compatible with S700 / S800 series I/O modules
Expansion Interfaces: Redundancy interconnection port, status indicators, reset button
Function Description
- Core Control: Serves as the central controller of Freelance system, implementing logic operation, closed-loop regulation and sequence control.
- Redundancy: Supports dual hot standby redundancy with bumpless switchover to ensure continuous system operation.
- Real-time Performance: Minimum program scan cycle is 10 ms, suitable for real-time control in general process industries.
- Data Exchange: Realizes data transmission between host computer, field I/O, third-party instruments and PLCs.
- Fault Diagnosis: Built-in self-diagnosis function to monitor hardware, bus and I/O status with local and remote alarm.
- Program Management: Supports online programming, downloading, backup and restoration.
Application Scenarios
- Process Industry: Main control unit for DCS in chemical, pharmaceutical, building material, municipal water treatment and waste incineration plants.
- Utility Systems: Control systems for plant power systems, air separation, circulating water and boilers.
- General Automation: Automation of complete sets of equipment in medium and small factories, centralized building control.
- Auxiliary Power Control: Control systems for water treatment, coal handling and ash removal in power plants.
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