#4 What's industry 4.0? what's IIOT? what's digital transformation?

Hi everyone,

I've recently listened on Youtube these interesting videos about Industry 4.0, IIOT and digital transformation explained by Walker Reynolds from Intellic Integration and I really recommend you to check them out, they're worth listening.















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#11 Let's automate using GRAFCET, Gemma with Node-red & Factory IO

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Hi everyone, I guess some of you know Factory IO, a very easy software to learn automation, handy to connect to lots of PLC and simulators to learn how to code automation with them. So this time I've used Node-red in a Raspberry Pi to connect with Factory IO and to code a GRAFCET with Gemma guide automation program to try if we could use just Node-red to solve an automation problem. To control real I/O, I've finally decided to use a ESP8266 wifi arduino connected to the RPi working as a wifi access point and using MQTT protocol, so it's been connected the Rpi wifi AP just with the Arduino, a PC and a phone to control the Node-red dashboard.  Besides this, I've had to install also a Mosquitto broker in the RPi to do the MQTT communication with Arduino. You'll see how we can test our Node-red code with Factory IO but, after this, we can stop Factory IO and just let the Arduino I/O to change our automation  states and control a real machine. Here you have the video to ...
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#2 OPC-UA server / client with Node-red

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I've been testing how to implement a OPC-UA server / client with Node-red What's an OPC-UA server?  Usually, it's a server that let you to read tags from different PLC's, it doesn't matter PLC brand, and then, it serves this tags to other systems like other PLC's, Scada, Computer systems (SAP, ERP...), Databases,... In IIOT (Industrial Internet of Things) applications it's a really good idea to use a hardware that let you to implement and OPC-UA server. Actually, you can use propietary systems like WEINTEK, WAGO, Weidmuller,... or simply use a Raspberry Pi to do so, like it's shown in this video: So, I've simulated a Modbus server (it would be our PLC) and, after this, Node-red's read the tags with a Modbus client and it has written the tags to the OPC-UA Server. Later on, I've read these tags with a OPC-UA Softwate (UaExpert) and, with a Node-red OPC-UA Client which has published them in a Node-red Dashboard. ...
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#14 MQTT and Siemens PLCSim Advanced, another protocol tested and working

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Hi everyone, MQTT is a very important protocol in IoT and IIoT and could be a great thing if we could test our projects using just Siemens PLCSim Advanced and without a real PLC. So I tested if we could do some comunication with a Mosquitto Broker and Node-red with a little Dashboard and it worked quite well So finally we could publish data from de Simulated PLC and subscribe the PLC to data from Node-red and from Internet. You can see how it works in next video. Cheers.
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