Yokogawa Authority Difference

In the chemical industry, Yokogawa (Honeywell) is one of the widely used automation solutions. In order to ensure the security and efficient operation of the system, permission management is a crucial link. Rights management is not only related to the operator's access rights, but also involves the protection of sensitive data and the optimization of system performance. This article will provide an in-depth analysis of the differences in Yokogawa's permissions to help chemical industry professionals better understand and configure the system.

1. Permissions Differences Overview

Permission differentiation is a core concept in Yokogawa for controlling access and operation of resources by different operators. In the chemical industry, resource management usually involves multiple operation layers, including production operation layer, monitoring layer, data acquisition layer and management layer. Proper permission configuration can ensure that only authorized operators can access specific resources, avoiding unauthorized operations and potential security risks.

In the Yokogawa system, the difference of authority is mainly divided into two types: operation authority and access authority. Operation permissions are usually used to control the operation of equipment, parameter settings and data operations, while access permissions are used to control access to resources such as monitoring interfaces, data storage, and history records. Understanding the difference between the two permissions is essential for the proper configuration and management of the system's permission policies.

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2. operation permission and access permission difference

1. 
   operation permissions Operation permission refers to the user's ability to control the device or system resources. In chemical production, the operation authority is usually used to control the running state of equipment, perform parameter adjustment and data operation. For example, dispatchers may need to monitor and operate key equipment in the production process, while ordinary operators may only be able to complete basic equipment maintenance and parameter adjustment.

In the Yokogawa system, the operation authority is usually implemented through RBAC (Role Based Access Control). Different roles (such as production operator, quality controller, dispatcher, etc.) can be assigned different operating permissions to ensure that only authorized operators can perform specific operations. This access control approach can effectively reduce the impact of unauthorized operations on the production process.

2. 
   access Access rights refer to the user's ability to access resources such as system interfaces, data storage, and history records. In the chemical industry, access rights are often used to control access to monitoring interfaces, data storage, trend charts, and historical data. For example, quality controllers may need to view historical data for key quality indicators, while production operators may need to view equipment operating status and production data.

Unlike operation rights, access rights are usually implemented through RBAC or OBAC (Object Based Access Control). OBAC is a more flexible permission control method that allows assigning access rights based on objects or function modules. In the chemical industry, OBAC is widely used to control access to complex systems and ensure the security of sensitive resources and the integrity of data.

3. authority allocation and management

1. Requirement-based permission assignment In the chemical industry, authority allocation needs to be dynamically adjusted according to production needs and management requirements. For example, when equipment fails or needs maintenance, it may be necessary to temporarily restrict the access rights of certain operators. The allocation of permissions also needs to consider the coordination between different operating layers to ensure that operators at all levels can collaborate efficiently.

2. Reuse and Locking of Permissions Permission reuse refers to combining multiple permissions to achieve more complex operations. In the chemical industry, permission reuse can be used to control the integrated management of multiple devices or systems. For example, dispatchers may need to control the operational status of multiple critical devices and access to production data at the same time.

Permission locking refers to restricting the user's rights under certain circumstances, such as prohibiting certain operators from viewing device parameters during device maintenance, or restricting access to certain resources during system failures. Permission locking can be achieved through the configuration of the Yokogawa system to ensure the safe operation of the system under special circumstances.

4. Rights Management Optimization Suggestions

1. Periodically check permission configuration Permission configurations may change due to changes in the production environment, so permission settings need to be checked and updated regularly. For example, when new equipment is added or production processes are adjusted, permissions may need to be reconfigured to ensure the normal operation of the system.

2. Using the RBAC model RBAC (Role-Based Access Control) is a flexible and efficient way of rights management. By defining the scope of permissions of different roles, you can achieve fine-grained control of operation permissions and access permissions. In the chemical industry, RBAC has been widely adopted because of its ability to meet complex production management needs.

3. Strengthen training and communication Rights management is a long-term management process that requires effective communication between operators and managers. In order to ensure the correctness of the rights configuration, operators should be trained regularly to let them understand the rights management rules and operating specifications of the system.

5. summary

Authority differentiation is a core concept in the Yokogawa system to ensure safe and efficient operation. In the chemical industry, the correct configuration and management of permissions can effectively reduce the impact of unauthorized operations on the production process, while improving system security and management efficiency. This paper analyzes the difference between operation permission and access permission, and puts forward the optimization suggestion of permission allocation and management. By following reasonable authority management principles, chemical industry professionals can make better use of the Yokogawa system to ensure the realization of production goals and the long-term stable operation of the system.