Ethernet Open Connectivity Network

Components and Architecture - Ethernet Devices/Considerations

The Ethernet Hubs used in the I/O expansion network (C50 CPU only)are available from Honeywell.

I/O implementation requirements include:

•Constructing a configuration file, and loading it into the Controller Module. This file includes I/O numbering assignments for each I/O Function Block regarding Rack Number, Module Number ("slot" number, or position in the rack, starting from the left), and Channel Number.

•Physically assigning Rack Numbers, by positioning jumpers in the Scanner Module for each rack.

•Placing the appropriate module type in each slot in each rack.

The I/O expansion network uses Honeywell private protocol that optimizes I/O performance and security.

The configuration and operation of the I/O expansion network is automatic, it is entirely under control of built-in private software that resides in the Controller Module and in each Scanner Module included in the HC900 system. The controller examines the control strategy stored in its memory, verifies that the physical configuration (Rack Numbers, and I/O Module type- by Module Number) matches the stored control strategy, and establishes communication with each of the I/O modules in each of the I/O racks.

The configuration of the Ethernet Open Connectivity Network varies with specific applications in purpose and in complexity. In some applications, configuration is straightforward and within the capabilities of experienced installation technicians. In other applications (for example, those that include inter-connection to other networks such as Intranet and Internet), a working knowledge of networking is required.

The Ethernet Open Connectivity Network for a given HC900 Controller enables:

•Peer-to-peer communication with up to eight other HC900 Controllers

•Connection to up to five PC hosts (for example, PCs that include HMI supervisory software and/or Hybrid Control Designer configuration software)

•Inter-connection to other networks (such as for sending Alarm/Event messages via e-mail.)

Communications lockout is possible in high network traffic conditions.

When inter-connecting your HC900 controller sub-net to a plant network where there may be significant network traffic not directed to the HC900 controllers or to related supervisory control or data acquisition software interfaces, we highly recommend you use a router to protect the controller from this extraneous traffic.

Failure to do so could, in high traffic cases, result in communications lockout requiring the controller to be power-cycled. See Figure 59 on page 178 for an example of an installation for a typical interface to another network sub-net.

Peer-to-Peer Communication

Peer-to-peer communication enables any given HC900 Controller to exchange signal and variable data with up to eight other HC900 Controllers. Peer-to-peer communication uses the Ethernet Open Connectivity network and employs standard User Datagram Protocol (UDP) for fast and efficient transfer of information. Peer-to-peer communication is based on fail-safe and data expiration mechanisms that provide for fault and loading considerations without requiring reserved network bandwidth allocation. Peer-to-peer is designed to be easy to configure as part of a device's standard configuration and does not require the distribution of a global database.

14	HC900 Hybrid Controller Installation and User Guide	Revision 5
		9/03

HC900 specifications

The Honeywell HC900 is a robust control solution designed to meet the demands of process industries. This flexible and powerful platform provides a comprehensive set of features tailored for process control and monitoring applications. The HC900 is particularly suited for batch control, continuous processes, and discrete applications, making it a versatile choice for a variety of industries, including oil and gas, chemicals, and electricity generation.

One of the main features of the HC900 is its modular design. This allows users to customize their control systems by selecting from a range of I/O modules, communication options, and control strategies. The system supports both analog and digital inputs and outputs, enabling seamless integration with existing infrastructures. Additionally, the modular approach enhances scalability, allowing users to expand their systems as their needs evolve.

The HC900 is equipped with advanced control technologies, including adaptive control, multivariable control, and real-time data logging. These capabilities facilitate fine-tuned control over complex processes, improving efficiency and reducing waste. The system can manage multiple process loops simultaneously, providing operators with a holistic view of their operations.

Another significant characteristic of the HC900 is its intuitive user interface. The system features a graphical display that allows operators to monitor system performance easily and make adjustments quickly. This user-friendly design minimizes training requirements and encourages efficient operation across different experience levels.

Furthermore, the HC900 incorporates sophisticated data management tools. With built-in logging and reporting functions, users can track process variables and generate comprehensive reports for analysis and regulatory compliance. This data-centric approach fosters informed decision-making and enhances overall operational effectiveness.

From a communication standpoint, the HC900 supports a variety of protocols, making it compatible with many industry-standard devices. This interoperability ensures that users can integrate the HC900 into their existing systems without hassle, streamlining migration and upgrade processes.

Additionally, the HC900 is built with reliability in mind. Its rugged design ensures durability, capable of withstanding harsh environments while maintaining consistent performance.

In summary, the Honeywell HC900 stands out as a powerful and flexible control solution, equipped with modular design, advanced control technologies, and user-friendly interfaces that cater to the diverse needs of process industries. With its comprehensive data management capabilities and robust communications options, the HC900 is an excellent choice for organizations striving for efficiency and reliability.

Honeywell HC900 manual Ethernet Open Connectivity Network, Peer-to-Peer Communication

Models: HC900