Understanding RTD

RTD refers to Real-Time Drivers, which are a set of drivers used in real-time software applications. These drivers are specifically designed to support both AUTOSAR and non-AUTOSAR applications and are suitable for Cortex-M cores. They ensure compliance with safety and quality standards such as ISO 26262 and are versatile enough to be used across all software layers. The drivers boast full IP and features, allowing seamless integration with middleware and stacks, including FATFS and LIN, at the platform level. They are available for a range of devices, including S32K3, S32K1, S32G2, and S32G3, and are compatible with various compilers such as GCC, IAR, DIAB, and Greenhills GHS.

In another context, RTD signifies the service adjustments made by public transit authorities, such as the modifications to bus and rail schedules based on careful analysis and community feedback. These changes are implemented to improve overall service reliability, punctuality, and to meet evolving travel demands. For instance, RTD is set to introduce service changes on January 7, 2024, with a focus on increasing service effectiveness and passenger convenience through measures like bus stop consolidation.

Additionally, RTD stands for Resistance Temperature Detectors in the field of temperature measurement. These devices utilize resistance elements like platinum, nickel, or copper to accurately measure temperature. RTDs come in various forms such as wire-wound and thin-film, each with distinct advantages in terms of durability, cost, and design flexibility. While wire-wound RTDs are typically more precise, thin-film RTDs offer better resistance to damage from physical impacts. Despite their sensitivity, RTDs are widely used in industrial applications due to their reliability and accuracy.

RTD Plugins for Excel Tutorial

Understanding the RTD Function

The RTD (Real-Time Data) function in Microsoft Excel is designed for retrieving data in real time, specifically tailored for financial and scientific applications. This function stands out due to its reliability and robustness, making it a superior choice over other Excel functions. The RTD function operates based on COM (Component Object Model) technology, which facilitates the integration of real-time data into Excel workbooks from an RTD server.

Using RTD Plugins in Excel

Data retrieved by the RTD function is continuously updated whenever new information becomes available from the server. This ensures that users have the most current data at their fingertips without needing to manually refresh. Additionally, the RTD function can be integrated into user-defined functions through Microsoft VBA, offering greater flexibility and customization. For ease of use, wrappers can be employed to streamline the application of the RTD function within Excel.

Advantages of RTD Plugins

RTD plugins in Excel present several advantages over DDE (Dynamic Data Exchange). As a COM-based function, RTD is more robust, reliable, and convenient, offering seamless real-time data updates. Unlike other functions that require a worksheet recalculation to refresh data, the RTD function updates autonomously when Excel is idle and when new data is received from the server. This distinction provides users with an efficient and up-to-date data management experience in Excel.

Frequently Asked Questions

What does RTD stand for in Excel?

RTD stands for RealTimeData function in Excel.

What is the RTD function used for?

The RTD function is used for retrieving real-time data, like financial or scientific data, from a COM Automation server.

What are the requirements for using the RTD function in Excel?

The RTD function requires an RTD server to provide the real-time data and the RTD COM automation add-in must be registered on the local computer.

How does the RTD function update data in Excel?

The RTD function updates the function result when new data is available and Excel is idle, different from other functions which only update on worksheet recalculation.

Are there any security considerations when using the RTD function?

Yes, RTD servers should be digitally signed for security reasons and the security settings for RTD can be reviewed in the Trust Center for Excel 2007 or adjusted in macro security settings for Excel 2003 and 2002.