1756-DHRIO Remote I/O scanner module

1、 Basic parameters
Communication Protocol: Supports DeviceNet communication protocol and can efficiently communicate with other DeviceNet devices.
Connection method: Connect to the ControlLogix controller and DeviceNet network through specific interfaces to achieve data transmission and interaction.
I/O points: Having a certain number of input/output (I/O) points, it can connect various sensors, actuators, and other devices to meet different control requirements.
2、 Performance characteristics
Remote I/O scanning function:
Capable of scanning and monitoring I/O data from remote DeviceNet devices, transmitting real-time data from remote devices to the ControlLogix controller for centralized control and management.
Support high-speed data transmission to ensure real-time performance and response speed of the control system.
High reliability:
Adopting advanced electronic components and manufacturing processes, it has good stability and anti-interference ability, and can work reliably in harsh industrial environments.
Equipped with fault diagnosis and alarm functions, it can promptly detect and handle faults in modules and networks, improving the reliability and maintainability of the system.
Easy to configure and use:
Through Rockwell Automation’s programming software, it is easy to configure and program the 1756-DHRIO module, setting the address, type, communication parameters, etc. of the I/O points.
Provide an intuitive user interface and rich functional options, enabling users to easily control and manage remote I/O.
Strong compatibility:
It has good compatibility with other modules and devices in the ControlLogix series and can be seamlessly integrated into existing control systems.
Supports connections with multiple DeviceNet devices and has a wide range of applications.
3、 Application scenarios
Industrial automation production line: In large-scale industrial automation production lines, it is necessary to control and monitor equipment distributed in different locations. The 1756-DHRIO module can connect remote I/O devices through the DeviceNet network to achieve centralized control and management of various links in the production line, improving production efficiency and quality.
Distributed Control System: In a distributed control system, the 1756-DHRIO module can serve as a remote I/O scanner, connecting devices distributed in different areas to the ControlLogix controller to achieve unified control and management of the entire system.
Application in harsh environments: The 1756-DHRIO module can work reliably in harsh environments such as high temperature, high humidity, and strong vibration, meeting the special needs of industrial sites.
In summary, the 1756-DHRIO module is an important component of the Rockwell Automation ControlLogix series, providing an efficient and reliable remote I/O scanning solution for industrial automation systems, widely used in various industrial fields.

As a pioneer in technology, ABB has received an order from Transpower New Zealand to upgrade its high-voltage direct current (HVDC) transmission lines, which interconnect the transmission networks of the North and South Islands.

It is reported that this high-voltage direct current transmission line connecting the North Island and South Island of New Zealand is an important component of the country’s power grid system and also the power balance system between South Africa. ABB’s Ability MACH control system, as the brain or nerve center of the link, will become a key component of the upgrade.

It is reported that the population of the North Island of New Zealand is more than three times that of the South Island, and in addition to its picturesque scenery, it also provides a large amount of hydroelectric power. Therefore, the demand for electricity in the North Island has greatly increased and relies on the power supply in the South Island. The north-south high-voltage direct current transmission interconnection line, which is over 600 kilometers long, can efficiently transmit clean electricity to high demand areas. The line also plays an important role in the New Zealand electricity market by allowing electricity trading between two islands.

ABB has a historic involvement in this project. The first New Zealand HVDC transmission system was built by ABB (formerly ASEA) in 1965, which was also one of the world’s first HVDC transmission systems at that time. It was originally a bipolar 600 megawatt (MW) link with a mercury arc valve, until 1992 when the original equipment was connected in parallel to a single pole and ABB collaborated with it to debug a new thyristor pole, increasing the capacity to 1040 MW.

It is reported that this upgrade includes the upgrade of Valve 2, which is composed of electrodes, optical fibers, and valve control units based on the latest ABB Ability MACH control system. The upgrade will be completed in 2020, and its implementation will minimize the impact on the power grid and electricity trading market.

This upgrade will improve the reliability and availability of the power grid, thereby enhancing power safety and bringing clean energy to consumers, “said Claudio Facchin, President of ABB’s Power Grid Division.” This project reaffirms our strategic focus on services and commitment to integrating renewable energy, as well as the role of digital technology based on ABB’s capabilities, and consolidates our leading position in HVDC technology, becoming the preferred partner for achieving a stronger, smarter, and more environmentally friendly power grid

ABB pioneered high-voltage direct current transmission technology 60 years ago and has obtained approximately 120 high-voltage direct current transmission projects with a total installed capacity of over 130000 megawatts, accounting for about half of the global installation base.

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