Resources & Tools

Case Study: Dignified Motors Makes Driving Accessible

Documents - 2356 - 5/13/2021

View in HTML What do you do if you own a beautiful truck but one day find yourself a wheelchair user? Dignified Motors answers that kind of question every day. See how an...more

Case Study: FCI Watermakers

Documents - 2306 - 5/14/2021

View in HTML Question: What do a yacht owner, an island resort, and a Las Vegas chef have in common? Answer: They all need a reliable source of good fresh water—and they all count on...more

Powerup clear expected returned from control engine - what does this mean & does it affect the Strategy?

What does the ‘powerup clear expected returned from control engine’ popup message indicate? Thanks Dave...

What future features would you like to see in groov View?

Continuing on the theme from Groov date time gadget, what features would you like to see in groov View? What do you need that we’re not providing?...

Groov Rio Programming

Hello Team, I am using the Opto Groov Rio module. Few queries : Can we do C programming in Rio, If not which programming language we can use and do we program it(Editor)? If we want to send the serial...more

Read text file from PC into Groov

Hi, We are just starting out with the Groov Epic. We are using it in “Codesys mode”. So far so good! For a project, we need to read the contents of a text file from a Windows PC into the Groov. What is...more

Seconds since midnight

Do what when: In last week’s blog we covered how to set the real time clock (RTC) in a PAC Controller with an accurate time server over the Internet using SNTP. Now that our controller knows exactly...more

Cannot get IOUnit object count

In PAC Display we keep running into this error: "Cannot get IOUnit object count from strategy file" Not sure what we’re doing to cause this, and I couldn’t find anything in the docs. Any ideas?...

How to set the clock on a PAC Controller

What time is it? Do you know what time it is? Does your SNAP PAC controller know what time it is? Are they the same time? Who’s right? In this week's blog we are going to talk about this big ball of...more

OptoNews: IoT Defined - OT and IT

If you've heard much about the Internet of Things (IoT) or Industrial Internet of Things (IIoT), you may have heard the terms OT and IT. What do those terms mean? And why do we hear that OT and IT are "converging"? Let's take a look.

Understanding SSL/TLS and HTTPS

Two keys for secure communications: What are SSL/TLS and HTTPS? You may have heard them being used on the Internet, and you have more than likely used them when logging into your bank, but what are...more

EPIC Protocols and Ports

I’m sure I can find this in various documentation but I figured someone here might know off the top of their heads. Our customer’s IT dept is limiting VPN access by protocol and port instead of just...more

Modbus Communication

Hi, Do we have any hardware which converts Data From SNAP-PAC-S Series controller or SNAP-PAC- R series controller to Modbus RTU or Modbus TCP-IP. What I know is we can do this with Modbus Integratio...more

Flow to open solenoid valves on prescribed interval using Raspberry Pi

I am planning to purchase OPTO-P1-40P andSNAP-D4M and will run Node-RED on a Raspberry Pi to do a simple program. I have some of it figured out, but a few areas need some help. Here’s what we have now...more

RESTful feature

Hello！ I upgraded my S1 PAC controller to firmware 9.5, and tested the RESTful feature. I can read the data in the PAC through the IE. Excuse me, can I write data through the IE to S1 PAC? What should...more

Do a flow at the top of every hour

Need to do something at the top of every hour? Node-RED is a little odd with its inject nodes… You can do something at an interval, or at a specific time once a day, but repeating at a specific time...more

Mini case study: Dignified Motors makes driving accessible with groov EPIC

Innovative engineer turns to Opto 22 to power an EPIC Chevy Silverado lift system Download case study pdf What do you do if you own a beautiful truck but one day find yourself a wheelchair user...more

PAC or EPIC as IO Device for Honeywell

Has anyone used Snap R1 or Epic PR1 as a remote IO for Honeywell HC900? What did you use for communication? Modbus TCP as a slave is an option but. Can we use Ethernet IP ? Just curious and thought...more

Sequencer in flow chart?

I programmed a water plant using Opto’s charts, and it worked well, but I can’t help but think a sequencer is what I need. Has anybody created some sort of sequencer code that they liked? I can’t...more

Opto 22 + iOS = iPAC

Opto on an Apple. Ever been up a ladder and needed to see a temperature? I know I have… What I used to do was make a PAC Display runtime with the temperature I wanted to see in a really big font. That...more

Network data use monitoring via Node-RED flow - Example flow (MongoDB issue)

We had a customer question / request come in as follows; We have several RIOs in the field, remotely monitoring a system for us. They are each on their own cellular router. The data usage on the...more

groov View Maintenance Technical Note

Documents - 2130 - 4/19/2022

What is groov View maintenance, what happens when it expires, and how do you renew it? This technical note answers all your questions about groov View maintenance. This document applies to...more

Groov EPIC and Microsoft Power BI

In the past, I have introduced groov EPIC features to our top managers. When explaining about groov View dashboard, this term always comes up from my audience; Power BI. And I go like, “I do not know...more

Groov SSL and SmartTV

Hello, I am setting up a LG smart TV to hit our Groov box. The TV uses webOS, and has a nice browser. The problem that it will not accept the Groov’s SSL certificate. From what I have read this is a...more

PID Loop with no hardware I/O

Hello everybody, Being new to PID loops, so far all my research says that you have to have an I/O Unit configured to use a PID loop. What I am trying to do is create a PID loop in PAC Control...more

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