Resources & Tools

1-25 of 1908 results
Controller lost ethernet communication without configuration changes
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Hello guys, I have a SNAP-PAC-R1 controller. The controller has a fixed IP address and was running fine. A ping test to the static ip address reply a good communication with 0% loss. However, recently it...more
Porting C# application onto GRV native linux
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I have a c# application that is running on an embedded PC which uses the .NET SDK (the dll) from Opto22 to gather data from I/O processors such as the SNAP-PAC-EB2. This application then interfaces to a...more
SNAP-PAC TLS cipher list
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Is there a document that list of supported TLS ciphers on SNAP-PACs? I recently updated a reverse proxy I use for a web service (caddy) and now I am getting TLS handshake errors from the PAC. -2103 error...more
Cannot get I/O reference count to zero
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I’m transferring a control strategy from SNAP to EPIC. I am going from Control Pro 9.6 to 10.2. I added an EPIC I/O system, made new I/O points, and then replaced them from the SNAP to the EPIC. All...more
Node-red and Groov View Text Area
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Greetings, Is that possible using node-red Groov Write Node to write data from text file into Text Area Gadget in Groov View? So that the Text Area Gadget could display data on Groov View. Or there is another way to show text file on Groov View? Eg: ...
SNAP Enet toolkit install using cmd
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I am working on creating a batch file that executes numerous commands to set up a computer. I have the PAC Project MSI file for use in command prompt. But I am having trouble with the SNAP Ethernet IO...more
Any plans for I2C support?
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Wondering if there are any plans for adding software I2C support to any existing epic modules, or any plans for a hardware I2C module? Or, maybe the shortest path to I2C would be an arduino or raspi...more
Implementing audible alarms using text-to-speech
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Hi everyone. Here’s my challenge…We have 3 groov EPIC units in the plant controlling equipment. We have sirens and horns and such rigged up to sound off whenever there is an alarm condition, but using...more
Updating & New Admin User Account
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Updating your Epic system from Opto Groov Manage website. Do you need to create a new Admin User Account every time you Update your Epic to the latest version? Or does the Update process clear out the existing Admin User Account?...
Flow to set PAC Control variables using CSV recipes
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If you’ve ever needed to quickly change an entire strategy’s worth of PAC Control tags back and forth between specific pre-set values, this post is for you! This flow takes tag “recipes” as comma...more
Javascript equivalent for ShiftNumTableElements
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I want to build an array in a Node Red function block, similar to the technique in PacControl using the command ShiftNumTableElements. I am reading a float variable from the S2 Controller, which...more
Event conditions in groov View -- any way to use a % value?
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Is there any way we can use a % value in the limit fields when setting up the event conditions in groov View? I my case, every few hours the tag being monitored (e.g. actual feedrate) changes. We...more
Groov Write Queue Full
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How many pending writes does the groov AR1 support and how fast are writes written between the onboard Node-Red server and the groov server? I’ve got an application in which I’m querying a device via...more
FTP, 'vsftpd' application
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Has anyone had success with installing and utilizing the FTP application ‘vsftpd’ on the Epic? Any tips/tricks to be aware of. Dave...
Flow to get CPU die temperature from EPIC PR1
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Here’s a quick little flow that uses a shell command to grab the temperature directly from a groov EPIC-PR1 processor. Note that you do not need shell access for this to work, the command does not...more
What does "limited sockets implementation" mean?
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I am wondering what the phrase limited sockets implementation means. (This is in the PAC Control Reference Guide (1701) in the notes about the Accept Incoming Communication command). Is this the same...more
Receive Table Missing Data
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I have data saved into csv format in text files. The text file is a [1 x 89], but when I read it into PAC control it only has 87 data cells. It is missing the last 2 data points. The code I am using is...more
Backing up the Groov 'project' to the Epic from a Win10 laptop running Groov Server
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Hope this is not a redundant post, I could not find anything similar. I am running Groov Server on a Win10 laptop that is connected to an Epic PR1 that we are setting up for the first time. The...more
Node-Red Installing Opto22 Nodes via Epic, Firewall?
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I’ve a couple ‘newbie’ questions, I couldn’t find any related topics of the Node-Red or Epic forum pages. We are setting up our first Epic system, I have a Win10 laptop connected and it all works fine....more
Lost connection to an R1 through Ignition with the Cirrus module
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Hey guys, I’m running 3.4.4 of the Cirrus Opto 22 SNAP PAC driver with Ignition 7.9.8, and a couple of weeks ago it just shows not connected, and it won’t reconnect. I’ve restarted the module...more
Sending an email from node red flow : based on integer table status
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I am new to node red and JavaScript. I would appreciate help on something I need to get working. I want to send an email to notify me of an alarm condition, based on the status of an I 32 table from my...more
Groov-AR1 Won't Power Up
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I have an AR1 that won’t power up or respond anymore. I popped the cover off and F1 is good and red LED1 is on. Power at terminals is 11.97 VDC. Are they any other checks I can do to revive this...more
How to continuously run script on EPIC through SSH?
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How can I continuously run the script on EPIC like it is a strategy in PAC control? I have tried putting the code with a continuous loop so EPIC can always check the button state and response as...more