Opto22 - Resources & Tools

Restored groov View project is Not Logging Events

Knowledge Base - KB88691 - 1/7/2021

After restoring a groov View project that includes Event Notifications, any new Event Notifications will not be saved to the Event log. Other Event Notifications configurations you selected (for example,...more

OptoPartner OptoTech

Videos - 1/5/2021

In this short interview, Pons Tugonon talks about how OptoTech (now P&E Automation) is using groov EPIC to create a smart manufacturing architecture that integrates multiple...more

White Paper: Industrial-strength MQTT/Sparkplug B

Documents - 2357 - 1/14/2021

Are you a system integrator, developer, engineer, or manager wondering if MQTT could help with your industrial internet of things (IIoT) application? If so, this white paper can give you some...more

Case Study: Dignified Motors Makes Driving Accessible

Documents - 2356 - 12/18/2020

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 innovative engineer powered a Chevy Silverado lift system in this case study.

Not Responding Indication May Appear After Starting Strategy

Knowledge Base - KB89395 - 12/23/2020

Press the Run Strategy button in PAC Control Debug mode and the Run Strategy dialog appears. The dialog displays which IO unit is currently being configured to the user. Because GRV modules can take a...more

groov Serial Channels and Possibly I/O Unit Missing After Import

Knowledge Base - KB89386 - 12/23/2020

When a PAC Control chart that contains references to serial channels is exported, then it is subsequently imported into a new/different strategy, it does not have the serial channels.

Values for Quality May Be Incorrect or Inconsistent in Inspect Windows

Knowledge Base - KB89327 - 12/23/2020

In PAC Control, you may observe incorrect values for Quality in the inspect windows for analog or digital channels on a groov RIO

PAC Control Edit PID Loop Dialog Does Not Always Save Changes

Knowledge Base - KB89205 - 12/23/2020

If you open the Edit PID dialog in Configure mode of PAC Control and use the keyboard to make changes to Input, Setpoint, and/or Output, then click OK , when you re-open the dialog, the changes are not...more

Focus on Edit Variable Dialog is Lost

Knowledge Base - KB89160 - 12/23/2020

If you are using a keyboard helper (for example, a third party app that rapidly makes repetitive keystrokes changes to a UI), you may lose focus on the Edit Variable dialog.

Large Errors with Thermocouple Input Values When Current Outputs Configured

Knowledge Base - KB89444 - 12/9/2020

If any channel from 4 to 7 is configured for analog current (mA) output, you may see large errors in thermocouple input values.

Loss of Communication on ETH0

Knowledge Base - KB89201 - 12/9/2020

In very rare cases, ETH0 may fail to communicate. Link and speed LEDs may not illuminate.

LDAP Doesn't Authenticate; Processor Performance Slows

Knowledge Base - KB89394 - 12/8/2020

If the LDAP server goes down or the Ethernet cable is unplugged, you may see that LDAP stops authenticating and the processor's performance slows down.

Last Remaining Sys Admin Can't Change Password

Knowledge Base - KB89377 - 12/8/2020

In certain situations, the system administrator may not be able to change their own password through the groov Manage User page (from the groov Manage Home page, click Current User) or from groov View:

Scaling for Analog Channels Reverts to Default Values

Knowledge Base - KB89427 - 12/8/2020

After certain restarts, you may observe that scaling values on groov analog I/O channels are not restored; instead, default scaling values are loaded.

Can't Switch to Build Mode When Using More Than One Percent (%) Symbol in Formatting String

Knowledge Base - KB89267 - 1/8/2021

If your groov View project has any gadgets with a formatting string that has more than one percent (%) symbol, when you run the project in View mode, those gadgets will display an error and you won'...more

Video Gadget May Not Load Images in Google Chrome Version 86 or Higher

Knowledge Base - KB89328 - 1/7/2021

NOTE: This KB article is for informational purposes. This issue is not a defect in groov View. If you configure a Video gadget with a URL that works only over HTTP, that Video gadget will fail to...more

Only 32 Colors Available on LED Gadgets With Non-Boolean Tag Types

Knowledge Base - KB89200 - 1/7/2021

When configuring color ranges on an LED gadget, if you select a Boolean tag, you can access the full palette of 56 colors. However, if you select any other tag type, you can only access 32 colors.

Ampersand Symbol (@) in Video Gadget URL May Prevent Images From Loading

Knowledge Base - KB89350 - 1/7/2021

If you have a video gadget with the 'Use groov as a proxy' option checked and the gadget's URL contains an ampersand symbol (@), the video proxy module in the groov View...more

PID Output Remains Invalid (QNAN)

Knowledge Base - KB89407 - 12/9/2020

In some situations, if the PID Input goes to "Invalid Value" (QNAN), the PID Output will also go to and remain stuck at "Invalid Value" (QNAN) even if the PID Input returns to normal, which is incorrect behavior.

Press Release: Opto 22’s groov RIO® Ethernet edge I/O now ships with PID, SSH, and LDAP support

Documents - 2355 - 11/24/2020

Version 3.0 firmware enables distributed closed-loop control, central user management, and tens of thousands more I/O combinations.

Digital Output (Except Mechanical Relays) May Pulse On Briefly When Strategy Is Started

Knowledge Base - KB89398 - 12/9/2020

In groov Manage, when you change the signal type on channels 0-7 from a digital input to a digital output while live voltage is applied to the field connector that causes the input to report it's state as ON, the output will turn on briefly.

TPO Channel's State Does Not Change With Percentage (Duty Cycle) of 100%, 0%, or Less Than 0%

Knowledge Base - KB88962 - 12/9/2020

In a PAC Control strategy with either a GRV-EPIC-PR1 I/O unit or a GRV-R7-MM1001-10 I/O unit that has a digital output channel configured as a TPO, you may observe that the TPO channel's...more

Some Settings Not Saved When Changing Signal Type

Knowledge Base - KB89389 - 12/9/2020

Some settings may not be saved on the first attempt to change a channel to an analog signal type.

Demoted User Shows PAC Control REST API Permissions

Knowledge Base - KB89391 - 12/9/2020

groov Manage incorrectly shows the user having permission to "PAC Control REST API Read-Write".

If Strategy Download is Canceled or Has Error, Persistent Variables May Be Cleared

Knowledge Base - KB89211 - 12/23/2020

Persistent variables may be cleared from the controller in some cases during strategy download cases.