Arduino Opta RS485
Strike a happy medium with all of Opta’s advanced features paired with Ethernet onboard, USB-C programming ports, and RS485 half duplex connectivity interface.
Overview
Arduino Opta is a secure, easy-to-use micro PLC with Industrial IoT capabilities.
Designed in partnership with Finder – leading industrial and building automation device manufacturer – Opta allows professionals to scale up automation projects while leveraging the Arduino ecosystem. Supporting both Arduino sketch and standard PLC languages, including LD (Ladder Logic Diagram) and FBD (Function Block Diagram), it was designed with PLC engineers in mind.
Its powerful STM32H747XI dual-core Cortex®-M7 +M4 MCU allows users to perform real-time control, monitoring and implement predictive maintenance applications.
Secure and durable by design, it supports OTA firmware updates and ensures data security from the hardware to the Cloud thanks to the onboard secure element and X.509 Standard compliance. In addition, Opta undergoes regular assessments to uphold and improve its cybersecurity posture.
All while maintaining Arduino Pro’s signature easy deployment in production thanks to a vast range of readily available software libraries and Arduino sketches.
Last but not least, various connectivity options make keeping everything under control effortless via real-time dashboards combined with the intuitive Arduino Cloud (or third-party services).
Opta comes in three variants so you can choose the best option for your project. Opta RS485 features Ethernet onboard and USB-C programming ports and RS485 half duplex connectivity interface.
Need Wi-Fi/Bluetooth® Low Energy connectivity? Opta WiFi is the best variant for you.
Happy with just Ethernet and USB-C? Check out Opta Lite.
Program it with the Arduino PLC IDE!
The Arduino PLC IDE makes PLC programming easy. Choose any of the 5 programming languages defined by the IEC 61131-3 standard (Ladder, Functional Block Diagram, Structured Text, Sequential Function Chart or Instruction List) and quickly code PLC applications or port existing ones to Arduino Opta.
Key benefits include:
- Easy and fast software development, starting from ready-to-use Arduino sketches, tutorials and libraries
- Support for standard IEC 61131-3 PLC languages
- Fieldbus integration via Modbus TCP (ethernet) and Modbus RTU (serial RS485)
- Real-time remote monitoring via intuitive Arduino Cloud dashboards (or third-party services)
- Security at the hardware level thanks to onboard secure element and X.509 Standard compliance
- Secure OTA firmware updates and Cloud device management
- High-power relay switching (4 x 2.3 kW)
- Reliable by design, thanks to industrial certifications and Finder’s expertise in switching technology
- Easy to install, with DIN rail compatibility
Opt in to industrial automation
Integrate a solid and reliable micro PLC with your existing machines, devices and production lines – also in combination with other elements in the modular and versatile Arduino ecosystem, from small and smart sensor-packed modules to SOMs to gateways, for end-to-end solutions that can be customized to meet any need.
Quality by design
Arduino Pro partnered with Finder, a leader in the field of electromechanical and electronic components with 65+ years of excellence and expertise to its name, to create a product with high-quality production specs for even the most demanding work conditions in industrial environments.
Need Help?
Check the Arduino Forum for questions about the Arduino Language, or how to make your own Projects with Arduino. If you need any help with your product, please get in touch with the official Arduino User Support as explained in our Contact Us page.
Warranty
You can find your product warranty information here.
Tech specs
Input | 8x configurable digital / analog (0-10V) input |
Processor | STM32H747XI Dual ARM® Cortex®:
|
Connectivity | Support 10/100 Ethernet (TCP/IP or Modbus TCP) USB-C RS485 half duplex |
Memory | 1MB RAM (programming) 2MB internal + 16MB Flash QSPI |
RTC | Typical 10 days power retention at 25°C NTP sync available through ethernet |
IP protection | IP20 |
Output | 4x relays (250 V AC - 10 A) |
Programming languages |
|
Security | ATECC608B Secure element |
Supply voltage | 12…24 V DC |
Operating Temperature | -20 °C to +50 °C (-4°F to 122°F) |
Certifications | cULus listed, ENEC, CE |
Resources for Safety and Products
Manufacturer Information
The production information includes the address and related details of the product manufacturer.
Arduino S.r.l.
Via Andrea Appiani, 25
Monza, MB, IT, 20900
https://www.arduino.cc/
Responsible Person in the EU
An EU-based economic operator who ensures the product's compliance with the required regulations.
Arduino S.r.l.
Via Andrea Appiani, 25
Monza, MB, IT, 20900
Phone: +39 0113157477
Email: support@arduino.cc
Documentation
Learn more
Get Inspired
This project displays your activity on a 12c LCD and on the Iot cloud, and temperature readings on the iot cloud
The brand new Nano Screw Terminal Adapter turns up the speed on your prototyping efforts by giving you a fast, reliable way to hook up your boards. This awesome add-on is exactly what seasoned makers have been crying out for, and is now available from the Arduino Store. Let’s take a look at this mini mechanical marvel. A solderless solution With a finished project, you’re likely to make permanent connections to your Nano by soldering it. Even if you’re connecting it using a header strip, the wires, components, sensors and accessories will be soldered, crimped or attached in a permanent way to the controller side of your project. It makes perfect sense to do this, when you’re looking for a reliable connection. The trouble with permanent connections like this is that they’re… well, permanent! Soldering and de-soldering during the design and prototyping stage can become a real chore. And it’s not good for the components or the board itself, either. The Screw Terminal Adapter is what you need. It’s something we’ve been asked for a lot, giving people a way to make robust, fast, easy connections that can be changed just as easily. Easy access to all I/Os The Nano Screw Terminal Adapter features a double row of headers. The Nano drops into the two inner rows, giving you a second, outer set that lets you connecting using jumpers, wires or what have you. Then you have a third row of connectors on either side of the adapter with a screw terminal for each pin. The perfect way to connect wires or components in a reliable, but easily changeable way. It’s never been easier to develop and design a project that with these connection options. There’s even a 9x8 prototyping area with through plated holes for adding extra components, connections or accessories. Of course, this doesn’t have to only be for prototyping. The screw terminal is a long-established, trusted connection option, so there’s no reason it can’t become a