Operating Characteristics - Controller Modes

Controller Mode Transitions

Mode changes are controlled primarily by positioning of the MODE switch on the controller module, and secondarily by selection of mode names on operator interface displays. That is, the Mode switch takes precedence. In the RUN (Locked) position or in the PROG (Locked) position, selecting a mode name at the operator interface has no effect on the operational mode. In the RUN/PROG position, the mode may be changed from any mode to any other mode.

The effects of the Mode switch operator interface selections are described in Table 20. The effects on controller operation for each mode transition are described in Table 21.

Table 20 - Mode Switch Functions

Mode Name

Position of

Mode

Switch Function

 

Mode

Selections at

 

 

Switch

Operator

 

 

 

Interface

 

 

 

 

 

RUN

Left

None (locked in

In this position, the Controller is locked in the RUN

(Locked)

 

RUN)

mode of operation. Run mode configuration

 

 

 

changes are disabled and mode can not be changed

 

 

 

at any operator interface.

 

 

 

 

RUN/PROG

Middle

PROGRAM

In this position, the mode can be changed at any

 

 

RUN

operator interface using screen selections

 

 

PROGRAM, RUN, or OFFLINE.

 

 

 

 

 

OFFLINE

 

 

 

 

 

PROG

Right

None (locked in

In this position, the Controller is locked in the

(Locked)

 

Program)

PROGRAM mode of operation. Mode can not be

 

 

 

changed at any operator interface.

 

 

 

 

112

HC900 Hybrid Controller Installation and User Guide

Revision 5

 

 

9/03

Page 122
Image 122
Honeywell HC900 manual Controller Mode Transitions, Locked

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.