Opto22 - Resources & Tools

If a groov event is disabled, the save changes dialog pops up when no changes were made

Knowledge Base - KB84778 - 7/6/2023

In groov Build, if an event is disabled and you open it but do not change it, the save changes dialog box opens even though you made no changes.

In groov Build, dialog boxes stay open when a user is logged out by an Admin

Knowledge Base - KB84280 - 7/6/2023

If you are working in groov Build and are logged out (for example, by an Admin user), dialog boxes that were open will not be removed from the page.

groov App security issue identified and corrected

Knowledge Base - KB85483 - 7/6/2023

A security issue was identified and corrected. Opto 22 recommends that you upgrade groov App to version R3.1a.

Windows 10 Edge 25 browser misaligns gadgets in groov View

Knowledge Base - KB85396 - 7/6/2023

In Windows 10 Edge 25 browser (part of the November update to Windows 10), many gadgets in groov View are broken and misaligned.

In groov, long names affect Page Navigator gadget's property panel

Knowledge Base - KB83683 - 7/6/2023

In groov Build, the properties panel for the Page Navigator may become distorted, especially with long page names.

When Chrome browser is maximized, groov gadgets may not be properly resized

Knowledge Base - KB84820 - 7/6/2023

If you are using groov Build in Chrome and the browser window is fully maximized for your monitor, when you try to re-size gadgets they may jump or flicker.

In groov, QNAN tag is not displayed correctly in Event Status logs

Knowledge Base - KB84819 - 7/6/2023

In groov event message logs and in notification emails, QNAN tagnames are displayed as a number. Instead, they should just show QNAN.

groov Video gadget URL does not update when a proxy is set unless you save & switch to groov View

Knowledge Base - KB84418 - 7/5/2023

In groov Build, if you make changes to the URL for the video gadget and then press the Live Feed Testing play button, the URL may not have been updated.

groov becomes sluggish with more than 50,000 OPC-UA tags

Knowledge Base - KB83467 - 7/5/2023

Importing OPC-UA tags and switching to groov Build mode can be very slow with more than 50,000 OPC-UA tags associated with a single device.

A groov App security issue was identified and corrected

Knowledge Base - KB84045 - 7/5/2023

A security issue was identified and corrected. Opto 22 recommends that you upgrade groov App to version R2.2c.

groov may become inaccessible with a link-local connection when network interface settings are changed

Knowledge Base - KB83784 - 7/5/2023

groov no longer responds after applying a new configuration to the second (ETH1) network interface.

Re-enabling communication to remote groov I/O Unit or groov RIO module may reconfigure channels

Knowledge Base - KB90070 - 7/6/2023

In a PAC Control strategy that lost communication with remote groov I/O unit or groov RIO module, re-enabling communication may cause all channels to be reconfigured, which then causes output values to reset.

Cannot connect to Node-RED, Ignition Edge, or groov View on GROOV-AR1

Knowledge Base - KB87135 - 7/6/2023

When you try to start groov View, Node-RED, or Ignition Edge in the GROOV-AR1, the browser displays a message to indicate a "Server Not Found" error. The exact message will depend...more

LDAP: Internal server error when valid user is entered

Knowledge Base - KB89490 - 7/6/2023

If you are running the Test Connection feature in groov Manage (from the groov Manage Home page, click Accounts > LDAP Settings) and you enter a valid user name, if groov Manage reports "Internal Server" error, you may have this issue.

EPIC Returns Error 500 Instead of 401 for Bad API Keys

Knowledge Base - KB88417 - 7/6/2023

If a client issues a REST API call to a groov EPIC with an incorrect API key, the groov EPIC returns an HTTP 500 error instead of a 401 (Unauthorized) error.

Ignition Edge may restart twice or not start after uploading a new server certificate

Knowledge Base - KB90358 - 7/6/2023

You may see in the groov Manage log that Ignition has been restarted twice it or it failed to start and the groov Manage Ignition page shows STOPPED in the Status section.

Video gadgets erroneously indicate that trial period ended before it started

Knowledge Base - KB90028 - 7/6/2023

Under certain conditions, a groov View video gadget will display one image and then disable itself and groov View will indicate that your trial period has ended.

Fields blank on Node-RED status page when viewed on touchscreen on external monitor

Knowledge Base - KB89829 - 7/6/2023

When viewing the Node-RED status page in groov Manage on the groov EPIC touchscreen or external monitor, all of the fields are blank. They should display the appropriate values.

System update fails: "Failed to import gpg certificate. The system clock may be too far in the past. Update the system clock."

Knowledge Base - KB89711 - 7/6/2023

Updating system firmware on groov EPIC or groov RIO may fail with the message "Failed to import gpg certificate. The system clock may be too far in the past. Update the system clock."

Modbus/TCP transactions may fail

Knowledge Base - KB89636 - 7/6/2023

When using a Modbus/TCP client to access the Modbus/TCP server on groov EPIC and groov RIO units, some transactions may fail even when accessing valid Modbus/TCP registers or a valid memory map region.

MQTT Client Publishes Topics Erratically

Knowledge Base - KB89068 - 7/6/2023

The groov EPIC or groov RIO MQTT client may publish topics erratically, regardless of the type of payload (Sparkplug or string), though it may be more noticeable with string payloads.

Quick Start not shown after creating first user

Knowledge Base - KB89066 - 7/6/2023

After creating the first user on a groov EPIC (GRV-EPIC-PR1) or groov RIO (GRV-R7-MM1001-10), the user is supposed to stay logged in and taken to the Quick Start page. Instead, the user is logged out and returned to the log in page.

Require Password Change option doesn't work

Knowledge Base - KB89064 - 7/6/2023

In groov Manage or groov View, when you create a new user ID and check the "Require Password Change" option, the user can log in without being prompted to change their password.

Node-RED stops responding or behaves irregularly

Knowledge Base - KB89048 - 7/6/2023

After being signed into a groov EPIC (GRV-EPIC-PR1) or groov RIO (GRV-R7-MM1001-10) for two weeks or so, you may notice that Node-RED stops responding correctly or behaves strangely.

System Update: Upload progress bar stops; banner turns red

Knowledge Base - KB88069 - 7/6/2023

During the Upload step of a system update (from groov Manage Home page, click Maintenance > Update), the progress bar will stop and the groov Manage title bar (in the background) will turn red. No error message is displayed.

Values for BCD tags display as raw decimal

Knowledge Base - KB88253 - 7/6/2023

If a gadget in your groov View project is configured with a BCD tag on a Modbus device, when you run the project and groov View displays the value of the BCD tag, it displays it as decimal integer instead of BCD.

How to license Ignition Edge instructions out-of-date

Knowledge Base - KB88063 - 7/6/2023

In groov Admin, when you click Ignition Edge in the left navigation bar, you see a reference to the groov Enterprise license and how to obtain the license. The instructions are out-of-date.

Firewall rules disappear/page is empty

Knowledge Base - KB88231 - 7/6/2023

When a groov EPIC processor restarts after a power failure, the Firewall page in groov Manage (Home > Security > Firewall) may be empty (all the rules have disappeared).

GRV-EPIC-PR1 Touchscreen Keyboard Is Missing Parenthesis Characters '(' & ')'

Knowledge Base - KB87930 - 7/6/2023

In groov Manage, groov View, and the login page, when you tap a text input box, then select the Symbol button on the touchscreen keyboard, both parenthesis characters '(' & ')' are missing.

Error when backing up: size limit reached

Knowledge Base - KB87633 - 7/6/2023

When you back up your groov EPIC processor and it has more than 1 MB of user files in either Secure or Unsecured space, groov Manage displays the following error: "Could not generate backup. Error: size limit reached".

Incorrect Headers in Response to Authentication Request

Knowledge Base - KB88880 - 7/6/2023

In the response to an authentication request, the groov EPIC processor and groov RIO include three headers that incorrectly imply support for a feature that groov Manage does not support.

Gadgets using computed tags may show an error when groov View starts

Knowledge Base - KB89781 - 7/6/2023

If your project contains any trend gadgets that use computed tags as a data source, when groov View starts, all gadgets using a computed tag may show an error icon, with the error message java...more

PAC Control: Communication to groov EPIC I/O unit becomes disabled if digital output point is disabled and SET TPO Period/Percent command is used

Knowledge Base - KB87820 - 10/16/2023

When in PAC Control Debug mode, if you disable a digital output point (channel) configured with the TPO feature on a local groov EPIC I/O unit and then use either the SET TPO PERIOD or SET TPO PERCENT...more

Color changes made to original or duplicate groov gadget are applied to both gadgets

Knowledge Base - KB86189 - 7/6/2023

In groov Build, if you duplicate an LED, Range Indicator, or Round Gauge gadget, any changes you make to either the original or duplicate gadget's color ranges are applied to both gadgets, until you save the project and switch to groov View and back.

groov project takes a long time to save if Trends have missing tags

Knowledge Base - KB84703 - 7/6/2023

When you're saving a project in groov Build, if a Trend gadget has pens whose tags have been deleted, saving can take a long time. The time required to save the project varies based on the number of...more

When groov password is mistyped the "Create groov Build Account" indicator remains spinning

Knowledge Base - KB84302 - 7/5/2023

When you create your first groov Build account, if you mistype passwords, it may look like the account is still being created. After you close the warning box, the password fields are not cleared and the "Create groov Build Account" indicator still spins.

groov Server for Windows cannot be accessed via localhost or IP address 127.0.0.1

Knowledge Base - KB84292 - 7/5/2023

When you try to access groov Server for Windows using either the default host name (localhost) or the loopback IP address (127.0.0.1), you receive an SSL error or an error stating that the host cannot...more

Reimporting a strategy in groov Build resets the controller's port to 1

Knowledge Base - KB83710 - 7/5/2023

After you re-import a PAC Control strategy, gadgets in groov View fail to connect; they show a yellow triangle. Gadgets cannot connect to the controller because the controller's port in the groov project has been reset to 1.

OptoMMP server resets when writing to Modbus/TCP holding register(s) with unit ID greater than 1

Knowledge Base - KB89480 - 7/6/2023

When using Modbus/TCP to write to Holding register(s) with Unit ID greater than one on a groov EPIC I/O unit or groov RIO unit, the OptoMMP server will reset. This will cause the groov I/O or RIO...more

Some EPIC and RIO channels configured with a feature may behave incorrectly

Knowledge Base - KB89114 - 7/6/2023

In PAC Control, if you configure a channel with a feature on a groov EPIC or groov RIO and you do not see the behavior you expect, check the channel configuration in groov Manage. If it doesn'...more

Using the groov Data Simulator may incorrectly start trial mode

Knowledge Base - KB86470 - 7/6/2023

If you have a GROOV-AR1-BASE or GROOV-SVR-WIN-BASE and have not purchased an additional Plus or Enterprise license, this problem may affect you. Your license allows you to connect groov to one device...more

qNaN on analog output module causes groov error

Knowledge Base - KB83225 - 7/5/2023

If a groov Slider gadget (or another gadget that allows an accuracy setting such as the Level Indicator gadget) is connected to an analog output module that the brain can't communicate with, it may...more

Cannot connect directly to groov View using port forwarding

Knowledge Base - KB88815 - 7/6/2023

If you are using port forwarding to access your GRV-EPIC-PR1 on a port that is different from the default port 443, you may not be able to reach groov View directly. Specifically, if you do not have...more

Instructions for RIO Firmware Update are Incorrect

Knowledge Base - KB89011 - 7/6/2023

In the Updage page of groov Manage (from Home, click Maintenance > Update), the instructions along the top of the page state "Sign into manage.groov.com to get the latest groov RIO system update."

MQTT may not scan all public tags after watchdog changes for digital output channels

Knowledge Base - KB90206 - 7/6/2023

If you are using MQTT on a groov EPIC processor or groov RIO module to scan tags, MQTT may not scan all public tags if there is a change to the watchdog value and the watchdog enable/disable field on digital output channels.

Timeout may occur when trying to log into groov

Knowledge Base - KB84235 - 7/5/2023

Sometimes when you try to log into groov, a request timeout occurs after 10,000 ms.

groov trends used with tables read only index 0

Knowledge Base - KB84390 - 7/5/2023

In groov, trends read only from index 0 of an array tag, regardless of the index chosen.

groov View fails to connect to OPC-UA servers

Knowledge Base - KB88147 - 7/6/2023

groov View fails to connect to any OPC-UA server if it cannot resolve its own hostname via DNS. Most commonly, after you configure the device and attempt to browse through its tags in the Tag...more

groov log viewer "Advanced Configuration" settings don't take effect immediately

Knowledge Base - KB86972 - 7/6/2023

When you change the groov log viewer's "Advanced Configuration" settings and save them, it appears to work. But changes don't take effect until you restart groov View. If you look...more

In groov, cannot import Modbus tags with a comma in their tag names

Knowledge Base - KB86341 - 7/6/2023

When you create a Modbus device in groov and try to import a .csv file of the device's tags, the import fails if a tag has a comma in its name. You receive an error similar to this: "Server Response...more

Last Remaining Sys Admin Can't Change Password

Knowledge Base - KB89377 - 7/6/2023

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:

In Build mode, modules don't appear in correct slot if GRV-CSERI-4 module is on the chassis

Knowledge Base - KB88157 - 7/6/2023

Some groov I/O modules appear in the incorrect slot position in the Module tree.

groov Manage: Manual DNS entries are lost after a reboot

Knowledge Base - KB87570 - 7/6/2023

After restarting the groov EPIC processor, the IP addresses you entered for the DNS Server fields disappear.

groov View: OPC-UA device tags aren't in alphabetical order

Knowledge Base - KB87051 - 7/6/2023

In the Gadget Palette's Tag tab in groov Build, tags from configured OPC-UA servers aren't alphabetized (but they should be).

Autorun flag toggled when groov Manage & PAC Control are both open

Knowledge Base - KB90325 - 7/6/2023

If you are switching between groov Manage and PAC Control using the icons in the Windows taskbar, while the Inspecting Control Engine dialog is open, the autorun flag might be toggled.

groov native OPC UA server does not accept connections to localhost

Knowledge Base - KB90346 - 7/6/2023

In your OPC UA client, if you specify localhost as the connection string to connect to the groov EPIC native OPC UA server, when you try to browse for tags, you get error messages.

Sort order in groov Find is inconsistent with standard ordering styles

Knowledge Base - KB90026 - 7/6/2023

The groov Find search results window has 5 columns and the first 4 can be sorted by clicking on the header of the column, but the results may not be listed in the order expected.

groov EPIC processor may become unresponsive

Knowledge Base - KB89818 - 7/6/2023

In rare instances, the groov EPIC processor may become unresponsive or may restart, the module status LED on all modules turns red, or ther is no Ethernet communication.

Trend data not restored when groov View project restored

Knowledge Base - KB89573 - 7/6/2023

When you back up a groov View project on one device (including the trend data), then try to restore the project on another device (or the same device after upgrading firmware), sometimes the trend data is not restored.

Add Serial Channel and Add Analog Point dialog boxes show incorrect options in Type and Module fields for groov modules

Knowledge Base - KB89203 - 7/6/2023

In PAC Control, when adding points to groov modules, the Add Serial Channel and Add Analog Point dialog boxes show incorrect options in the Type and Module fields.

All groov View gadgets connected to the same OPC-UA scanner show yellow triangles

Knowledge Base - KB88927 - 7/6/2023

If the OPC-UA server returns NULL results, groov View's OPC-UA scanner may disconnect from the server. Then all gadgets that are connected to that OPC-UA scanner show yellow triangles.

Set I/O Unit from MOMO Masks returns invalid address error for groov I/O

Knowledge Base - KB88461 - 7/6/2023

If your PAC Control strategy uses the Set I/O Unit from MOMO Masks instruction on a groov I/O unit, the I/O unit returns an invalid address error (-56) and no action is performed on the I/O unit.

Characters missing or incorrect when writing UTF-8 string on the Generic MMP page in groov Manage

Knowledge Base - KB88186 - 7/6/2023

When you write a UTF-8 string on the Generic MMP page in groov Manage (Home > Modules > I/O Unit Configuration and Tools > Generic MMP), some characters may not be correctly written.

Stack Full error and groov View flashes yellow triangle on gadgets

Knowledge Base - KB88221 - 7/6/2023

You may notice that all the gadgets momentarily show yellow traingles when your groov View project tries to read a numeric table. In some cases, the yellow triangles stay and you'll have to switch to Build mode to recover.

"Is I/O Unit Ready?" command always shows groov I/O as ready

Knowledge Base - KB88083 - 7/6/2023

If your PAC Control strategy uses the "Is I/O Unit Ready?" command to test for a groov I/O unit, the result will always be true, even if no I/O unit is connected. In addition, you may see errors in the Message Queue.

groov Digital Output On-pulse or Off-pulse Performs Inconsistently

Knowledge Base - KB88018 - 7/6/2023

When using the PAC Control command Start On Pulse or Start Off Pulse on some groov digital I/O modules, you may observe no pulses or lengthened pulses with the pulsed output:

Events that use OPC-UA tags don't work after groov restarts

Knowledge Base - KB86862 - 7/6/2023

An event that uses an OPC-UA tag displays a "Missing tag" error after groov restarts. Note that the issue happens when the tag is used only with an event (and nowhere else in the project).

groov Button gadgets don't report disconnected errors

Knowledge Base - KB86472 - 7/6/2023

If you're using groov View and your browser loses connection to the server, all gadgets that read tags should display a disconnected error (yellow triangle). However, Button gadgets don't show the error.

groov Data Store may allow writes after trial period has expired

Knowledge Base - KB86553 - 3/14/2018

If your groov is unlicensed and your free trial period has expired, reads and writes to a Data Store should not work. As expected, reads do not work. But writes may continue to work, either through the API or using a Command Button gadget.

Re-sizing groov View browser window causes trend filters to lose their settings

Knowledge Base - KB86462 - 7/6/2023

When you're viewing trend data in groov View, you can filter data sets by clicking on the data set title and color. However, if you resize the browser window, the filter is reset to defaults.

Cancelling or attempting to turn off passcode causes groov View for mobile to crash

Knowledge Base - KB86248 - 7/6/2023

In groov View for iOS, when you try to cancel the input for passcodes, the app will crash. The app also crashes if you try to disable the passcode option by entering the code to disable it. This...more

groov View for iOS does not correctly support usernames and passwords that contain spaces

Knowledge Base - KB86204 - 7/6/2023

In groov View for iOS, if you use a username or password that contains spaces, you cannot get into the app. When you try to connect, you are not logged in and are returned to the login page.

In groov View for iOS on an iPad Pro, once set, the "Handheld View" option may stick even if turned off

Knowledge Base - KB86202 - 7/6/2023

In groov View for iOS, once you have set the Handheld View, sometimes it continues to be displayed after you uncheck it. Note: This issue seems to occur only on the iPad Pro. Regular iPads and iPad mini do not display this symptom.

Internet Explorer deletes text in groov text area gadgets when grouped or selected together

Knowledge Base - KB86125 - 7/6/2023

In groov Build, if you group or select multiple text area gadgets with different text, Internet Explorer deletes the text in all of them.This issue affects only the Internet Explorer browser.

OPC UA dynamic array shows incorrect index range in groov event notification email editor

Knowledge Base - KB85839 - 7/6/2023

In groov Build, when you configure an OPC UA dynamic array in an event notification email, you receive an error that the array index range must be between zero and a negative number.

groov Event Notification email not saved if only tag(s) are added

Knowledge Base - KB85813 - 7/6/2023

If you create an event in groov Build and in the email notification editor add one or more tags but no text, when you click Update Event the event is not saved. Or when you click Return, you are not prompted to save changes.

In groov, setting Lower Hysteresis in an Event condition produces error

Knowledge Base - KB85738 - 7/6/2023

When you're creating a groov Event condition and you set Lower Hysteresis to any value, you receive the following error: "Lower hysteresis must be a decimal value greater than or equal to 0."

groov Graph gadget may have trouble showing min/max 32-bit or 64-bit float values

Knowledge Base - KB84368 - 7/6/2023

In groov View, you may see incorrect data on a graph for a maximum positive or negative 32-bit or 64-bit floating point number. (The Y-axis may show the wrong value range, or the Y-axis range labels may consume a large portion of the graph.)

In groov Build, Modbus tags are not auto-selected in Update Tag dialog box

Knowledge Base - KB84319 - 7/6/2023

In groov Build, when you click a gadget's Modbus tag in the gadget's Tag Properties panel, the tag is not selected when the Update Tag for Gadget dialog box opens. It should be automatically selected like other types of tags.

In groov Build, changing users causes a stuck "loading tags..." dialog box

Knowledge Base - KB83536 - 7/6/2023

In groov Build, if you choose Security in the menu bar, click "log out <username>," and then log back in with another account, a "loading tags..." dialog box appears and never seems to finish.

Firefox will not allow copying individual text from groov Event Message logs

Knowledge Base - KB84861 - 7/6/2023

If you're using groov in Firefox, when you click an individual event in the Event Message logs, all the text of the event is highlighted. You cannot copy just a portion of the event text.This issue affects Firefox only.

groov View: Event Status Viewer icon doesn't work after navigating away on IE and Firefox

Knowledge Base - KB84818 - 7/6/2023

In groov View, if you click the bell icon (Event Status Viewer) and then navigate back through the menu page list, the bell icon can no longer be clicked. This issue occurs only on Internet Explorer and Firefox browsers.

groov: Changed Opto 22 controller IP address does not immediately appear in the gadget palette

Knowledge Base - KB84805 - 7/6/2023

In groov Build under Configure > Devices and Tags, you can change the IP address for an Opto 22 controller. However, the changed IP address is not immediately shown in the Gadget Palette Tags list.

In groov Build, tags from PAC controllers running the same strategy are indistinguishable from each other

Knowledge Base - KB84398 - 7/5/2023

If you add two or more controllers that are running the same strategy to your groov project, you can't tell which tag belongs to which controller when you try to add a gadget.

Objects disappear from the Desktop & Tablet window in groov Build

Knowledge Base - KB83684 - 7/5/2023

When in the Desktop & Tablet view of groov Build, if you right-click on an object and select Lock Position and switch to the Handheld view and then back again to the Desktop & Tablet view, all of the graphics will be gone.

groov Admin keeps the default username when a login is created

Knowledge Base - KB83292 - 7/5/2023

After creating a login in groov Admin the first time or after restoring Admin to the default settings, Admin shows that you are logged in as "user" (the default username).

Backing up a groov project before saving prompts window to save all changes but does not back up

Knowledge Base - KB83959 - 7/5/2023

In groov Build, if you've made a change but not saved your project, and you choose File > Backup Project to Computer, a dialog box asks if you want to "save all changes" before proceeding. When you click Yes, the project is not backed up.

groov Admin upgrades do not work in Internet Explorer 11

Knowledge Base - KB83668 - 7/5/2023

In groov Admin, if you try to install an upgrade using Internet Explorer 11, you receive the error "Unable to verify package signature" and the upgrade is not installed.

Under certain conditions groov may fail to import a PAC Control strategy

Knowledge Base - KB83836 - 7/5/2023

When you're trying to import an idb.txt file from a PAC Control strategy into groov Build, the operation never finishes. The progress spinner continues to spin and the strategy is not imported.

Pressing Enter or OK multiple times when changing the password in groov Build causes an error

Knowledge Base - KB83721 - 7/5/2023

When changing a user password in groov Build, pressing the OK button or the Enter key multiple times causes an error box to appear stating that the old password was wrong.

MQTT/Data Service may not issue Death Certificate when MQTT service restarted

Knowledge Base - KB90390 - 7/6/2023

When a groov EPIC or groov RIO restarts MQTT/Data Service, they should issue a Death Certificate to indicate that subsequent tag data is stale. However, with this issue, groov EPIC and groov RIO do not issue the Death Certificate.

Groov silently enters trial mode after groov has started

Knowledge Base - KB83825 - 7/5/2023

Under certain circumstances, after starting up, groov can incorrectly enter into trial mode and eventually show trial mode errors. The gadget errors say "Your trial period has expired. Time to buy groov!"

groov dynamic tag array not operational

Knowledge Base - KB85713 - 7/6/2023

In groov Build, when you add a dynamic tag array, you may see one of two symptoms:The dynamic tag array can be configured but will not be operational.If you already have one dynamic tag array that...more

groov events cannot reference strategy table indexes

Knowledge Base - KB85192 - 7/6/2023

If you are using groov with a SNAP PAC controller, and you select a table element from the PAC Control strategy to be used in an event notification message, a -12 invalid table index error is...more

groov usernames and passwords cannot include special characters (%, &, etc.)

Knowledge Base - KB84457 - 7/5/2023

If you use special characters (that is, any character other than a number or a letter) when you set up your first groov Build username and password, you'll receive an error that says the passwords...more

Cannot load or re-load a license file after initial setup

Knowledge Base - KB83220 - 7/5/2023

A license file cannot be loaded or updated on groov App. For groov Server, the first license file uploaded to the server succeeds. All subsequent attempts to update that license file fail with the...more

Gadgets report error messages when scanning OPC-UA devices while running groov View with an expired license

Knowledge Base - KB87475 - 7/6/2023

In groov View, gadgets display messages about not being able to retrieve values for tags pointing to OPC-UA devices. You may also see messages about errors from com.opto22.groov.server.data.SubscriptionManager.

In groov Build, gadgets don't reflect deleted or changed Modbus tags until you refresh

Knowledge Base - KB86466 - 7/6/2023

Gadgets associated with dynamic Modbus tags that have been deleted don't show the no-tag icon in groov Build until you exit and re-enter Build. In older versions of groov, the no-tag icon does not...more

groov View mobile app fails to connect to sites with an IPv6 address configured to use a name

Knowledge Base - KB86214 - 7/6/2023

The groov View mobile app fails to connect to sites that have an IPv6 address when the connection is configured to use a name rather than a hard-coded IP address. For example: https://mygroov...more

Invalid trend configuration can crash groov View

Knowledge Base - KB86866 - 3/14/2018

After you configure a trend, groov View fails to restart cleanly and instead shows a 503 error (Service Unavailable). Sometimes an invalid trend configuration isn't caught, and groov View...more