# SIGNL4- Get your PLC alerts on the mobile app

I'm super excited to share my next video 📹 on the SINGL4 app from 📱, which is a game-changer for efficient and reliable alerting 🚨. In this video, 

* I am reading the alerts from the shop floor and sharing them with the team via APIs. 
* Thanks to ctrlX AUTOMATION, I can use ctrlX CORE to host Node-RED, which bridges the S7-1200 PLC and the SIGNL4 server.  
* I created the digital twin on [Simumatik](https://www.codeandcompile.com/simumatik) to get the alarm signals.

## LIVE Demo

{% embed url="<https://www.youtube.com/watch?v=B4XL8aqFuRs>" %}

## **The information flow:**

1. The Simulated system is controlled via an S7-1200 PLC
2. Node-RED running on the ctrlX CORE is reading alerts from the S7-1200 via S7 connection.
3. Node-RED processes the alerts and sends them to the SIGNL4 server via API.
4. SIGNL4 distributes the alarms to the team, ensuring important notifications reach the right people at the right time.&#x20;
5. The user brings the system to maintenance mode via the SIGNL4 app

{% hint style="success" %}
✅ Try SIGNL4 for 30 30-day free trial version to test drive the alert management platform. Head over to their website 👉<https://www.signl4.com>
{% endhint %}

## Key notes:

{% embed url="<https://www.canva.com/design/DAFkNu_VJIA/LIhkqsdokgvKCa_iw6ETSw/view?utlId=hac3b2f1ba9&utm_campaign=designshare&utm_content=DAFkNu_VJIA&utm_medium=link2&utm_source=uniquelinks>" %}

## ♥️ Work With Me

I regularly test **industrial automation and IIoT devices**. If you’d like me to **review your product** or showcase it in my courses and YouTube channel:

📧 Email: <rajvir@codeandcompile.com> or drop me a message on [LinkedIn](https://www.linkedin.com/in/singhrajvir/)