PLC Siemens Logo8! Funzioni speciali. Programmazione e simulazione

Summary

This video tutorial covers four special functions in the Logos Soft Comfort software: the astronomical clock, which sets device activation based on local sunrise and sunset times; the stopwatch, useful for timing events; the convenient switch, a multifunction relay with delay and continuous light options; and the annual timer, which activates based on a set date for events like anniversaries. The tutorial demonstrates how to configure these functions with practical examples, enhancing users' understanding of the software's capabilities.

Takeaways

• 🌞 The astronomical clock function is used to set device outputs based on sunrise and sunset times according to the local time zone.
• 🕒 The timer can be set to activate annually, monthly, or on a user-defined schedule, making it useful for events like anniversaries.
• 🏃‍♂️ The stopwatch function has three inputs: start, stop, and lap, allowing for precise time measurement and interval recording.
• 🔄 The convenient switch, or 'comfort switch', can function as a relay, a delay-off switch, or a continuous light switch.
• ⏰ The annual timer is programmed with activation and deactivation dates, and can be set for a period between January 1, 2000, and December 31, 2099.
• 📍 For the astronomical clock to function correctly, the device's geographical location, including longitude, latitude, and GMT offset, must be set.
• 🔀 The logic of the astronomical clock can be inverted with a NOT gate for applications like night-time outdoor lighting.
• 🕟 The offset for sunrise and sunset can be adjusted to control the timing of device outputs, with a maximum offset of 59 minutes.
• 🔎 The script provides a practical demonstration of how to use these functions with the LOGO! Soft Comfort software.
• 🔄 The 'comfort switch' can be used in two modes: delay-off upon trigger release, or continuous operation if the trigger is held.

Q & A

What is the main topic of the video?

The video discusses four special functions related to timers, specifically the astronomical clock, stopwatch, convenient switch, and annual timer.

What is the purpose of the astronomical clock function?

The astronomical clock function is used to set an output based on sunrise and sunset times according to the local time zone of the device.

How does the video demonstrate the use of the astronomical clock?

The video shows how to configure the astronomical clock to turn on an output between sunrise and sunset, and how to invert the logic to turn it off during those times.

What is the convenient switch and how does it work?

The convenient switch, also known as a multifunction switch, can be used as a pulse relay with a delay, a continuous light switch, or a signal generator.

How can the annual timer be configured?

The annual timer can be set to activate annually, monthly, or on a user-defined basis, and can be programmed to emit signals during a set period of time.

What is the range of dates for which the annual timer can be set?

The annual timer can be set for dates from January 1, 2000, to December 31, 2099.

How does the video illustrate the use of the stopwatch function?

The video demonstrates how to use the stopwatch to record time intervals, including using the 'lap' feature to mark specific intervals without stopping the timer.

What are the different modes of the convenient switch shown in the video?

The video shows two modes of the convenient switch: one with a delay at disconnection and another as a continuous light switch.

How can the annual timer be combined with the weekly timer for more precise scheduling?

The video explains that the annual timer can be combined with the weekly timer to schedule events not only by day but also by specific times of the day.

What practical examples are given in the video for using these special functions?

The video gives examples such as using the astronomical clock for automatic outdoor lighting from sunrise to sunset, and using the annual timer to remember anniversaries.

How does the video explain the concept of offset for sunrise and sunset in the astronomical clock?

The video explains that you can set an offset for sunrise and sunset to delay the activation or deactivation of the output by up to 59 minutes.