Digital guide
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Yokogawa ANT502-50 Optical ESB Bus Node Unit.
Technical Specifications
- Communication Interface: Optical ESB bus, LC connector (IEC61754 – 20 compliant).
- Fiber Type: Quartz single – mode, complying with IEC 60793-2-50 B1.1 standard.
- Transmission Distance: Up to 5 km per hop (when used with ANT401).
- Maximum Optical Loss: 0-10 dB at 1.3 μm wavelength.
- Supported Network Topologies: Chain and star configurations.
- Maximum Stages (Chain): 2 hops.
- Maximum Connections: 8 (combined chain and star type).
Detailed content
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- Power Supply: 24 V DC.
- Power Consumption: < 5 W.
- Current Consumption: 0.5 A.
- Operating Temperature: -20 to 60 °C.
- Storage Temperature: -40 to 85 °C.
- Mounting Options: DIN rail, panel or 19 – inch rack mounting.
- Weight: Approx. 0.25 kg.
- Function Features
- Long – distance Transmission: By using optical fiber communication, it can extend the ESB bus transmission distance to 5 km, which is suitable for remote installation of field devices in large – scale industrial sites.
- High – speed and Reliable Communication: It ensures fast and stable data transmission between the field control unit and the I/O modules, and meets the real – time requirements of industrial process control.
- Flexible Network Configuration: It supports chain and star network topologies, which can meet the diverse layout needs of different industrial sites and facilitate system expansion and reconstruction.
- Strong Environmental Adaptability: It can work normally in a wide temperature range and harsh industrial environment, and has strong anti – electromagnetic interference ability.
- Dual Redundancy Support: It is suitable for dual redundant ESB bus systems, which improves the reliability and fault – tolerance of the entire control system.
- Application Scenarios
- Large – scale Petrochemical Plants: It is used to connect the field control unit and the remote I/O modules in the large – scale petrochemical production base, ensuring the stable transmission of data in the large – span production area.
- Power Plants: It can be applied to the communication between the control room and the on – site equipment in thermal power plants, nuclear power plants and other power generation facilities, especially in the occasions with long transmission distance and high anti – interference requirements.
- Chemical Industry Parks: It is suitable for the interconnection of various production equipment and control systems in the chemical industry park, realizing the centralized monitoring and control of the whole park’s production process.
- Long – distance Pipeline Monitoring: It can be used in the monitoring system of long – distance oil and gas pipelines to transmit the data of the on – site monitoring equipment to the central control room in real time, ensuring the safe operation of the pipeline.
