# Protocols on the shop floor

> Siemens, Rockwell and Schneider make different PLCs, and the machines still talk to each other and to the supervisory system. This lesson shows which protocols bridge them, how OPC was created to standardize the conversation across vendors, and what OPC UA and MTConnect add.

Source: https://ubivis.ai/en-us/academy/intro-to-industry-4-0/protocols-on-the-shop-floor/

Introduction to Industry 4.0 · Module 03: communication protocols · Lesson

Siemens, Rockwell and Schneider make different PLCs, and the machines still talk to each other and to the supervisory system. This lesson shows which protocols bridge them, how OPC was created to standardize the conversation across vendors, and what OPC UA and MTConnect add.

## In this lesson

- PROFINET, EtherNet/IP and Modbus between sensors, actuators, PLCs and SCADA
- From OPC DA to OPC UA: platform independence, security and interoperability
- Modern equipment that already exposes its data over OPC UA, and how that eases monitoring
- MTConnect, the open standard for CNC machines and robots that makes operational data available

## Material for this lesson

[**Module 03 workbook: communication protocols** PDF in Portuguese, made to read and print.](https://ubivis.ai/assets/apostilas/introducao-industria-4-0-modulo-03.pdf) [**See the full course** 3 modules · 14 lessons](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/)

[Communication protocols](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/communication-protocols/) [Business case: communication hurdles on the shop floor](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/business-case-connectivity/)

## Lessons

[Introduction: why going digital changes the bottom line 6 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/introduction/) [What Industry 4.0 is 6 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/what-is-industry-4-0/) [The Ubivis story, with the CEO 9 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/the-ubivis-story/) [The industry of the future 8 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/the-industry-of-the-future/) [How to reach the fourth industrial revolution 7 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/reaching-the-fourth-revolution/)

[How to digitize a process: sensors or actuators? 9 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/how-to-digitize-a-process/) [What is the difference between digital and analog signals? 8 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/digital-and-analog-signals/) [The Internet of Things 7 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/internet-of-things/) [IIoT vs. IoT 6 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/iiot-and-iot/) [Business case: Ub-IoT across 20 plants with SENAI 5 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/business-case-senai/)

[The OSI layers 7 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/osi-layers/) [Communication protocols 6 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/communication-protocols/) [Protocols on the shop floor 8 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/protocols-on-the-shop-floor/) [Business case: communication hurdles on the shop floor 7 min](https://ubivis.ai/en-us/academy/intro-to-industry-4-0/business-case-connectivity/)