Hitachi Industrial Equipment Systems EHV Optical Remote Module
Hitachi Industrial Equipment Systems
EHV series optical remote module that controls up to 2,048 points via optical transmission.
Features - Up to 10 child units can be connected to a single master unit, allowing control of up to 2,048 external input/output points (the master unit can accommodate up to 4 units on a single CPU). - Transmission distance is a maximum of 1 km between units and a total maximum length of 10 km. - Bypass function for child units Even if the power to a child unit is turned off, communication with other child units can continue (DC 5V power supply from an external source is required for each child unit). - Ethernet communication port is standard on child units Up to 4 programming software or Ethernet-compatible displays can be connected to the communication port. - The inclusion of a 7-segment LED allows for easy determination of communication status. - Output hold settings can be configured for each child unit This can also be applied to process control. - You can use the same cables used for the H series optical remote. However, when using CSI-200/220, the distance between units is limited to 500 m. For further details, please contact us.
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basic information
- Up to 10 child units can be connected to one master unit, controlling a maximum of 2,048 external inputs and outputs (the master unit can have up to 4 units per CPU). - Transmission distance: maximum 1 km between stations, total extension up to 10 km. - Communication refresh between master and child units is fixed at 6 ms. - Child units come standard with an Ethernet communication port and are equipped with a 7-segment LED.
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Applications/Examples of results
It is utilized in large-scale control systems that distribute input and output devices over a wide area. It is suitable for long-distance remote I/O that is resistant to noise through optical transmission, as well as for process control where communication needs to continue even during power outages at child stations.
Company information
Kyushu Kiden Co., Ltd. not only sells electrical and mechanical products such as air conditioning equipment, industrial machinery, air compressors, elevators, escalators, and lighting fixtures as a Hitachi sales agent, but also provides solutions that contribute to energy conservation and decarbonization (SDGs), including the currently popular solar power generation (PPA), biomass power generation, and waste heat recovery units. The company is also certified as a planner for ZEB (Net Zero Energy Building), which has recently gained attention in corporate energy-saving measures, and has received great acclaim for its comprehensive energy-saving proposals for entire buildings. 【Service Areas】 - Fukuoka, Saga, Kumamoto, Oita, Yamaguchi, Hiroshima, Osaka 【Major Qualifications】 - First-Class Plumbing Construction Management Engineer - First-Class Electrical Work Construction Management Engineer - Designated Construction Industry Supervisory Engineer (Plumbing) - Designated Construction Industry Supervisory Engineer (Electrical Work) - First-Class Electrician - Chief Technician for Water Supply Equipment Construction - First-Class Refrigeration and Air Conditioning Equipment Construction Skill Technician - Building Equipment Engineer - First-Class Civil Engineering Construction Management Engineer - Third-Class Refrigeration Machinery Manufacturing Safety Manager - Refrigeration and Air Conditioning Construction Safety Management Certificate - Refrigerant Handling Technician Certificate - First-Class Hitachi Refrigeration and Air Conditioning Technician (Air Conditioning and Low Temperature) - And many others.
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