Opto22 - Resources & Tools

groov View hangs due to lag in computed tags

Knowledge Base - KB89826 - 8/17/2021

You may see the values of computed tags lag significantly behind real-time; for example, the computed value reflects input received minutes to hours earlier. Sustained high CPU usage by another process...more

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

Knowledge Base - KB89781 - 8/17/2021

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.lang...more

MQTT OptoMMP device status is erratic

Knowledge Base - KB89859 - 8/17/2021

When using an MQTT OptoMMP device (configured in groov Manage), you may experience (for MQTT Sparkplug payloads) the OptoMMP device’s status goes offline and then comes back online, or (for...more

Viewing the message queue may cause a PAC controller reset

Knowledge Base - KB89819 - 8/17/2021

On rare occasions, when you try to view the PAC Control Message Queue using either PAC Control Debug mode or PAC Terminal, the PAC controller resets. When this occurs, PAC Control or PAC Terminal may...more

groov EPIC processor may become unresponsive when writing to the memory map

Knowledge Base - KB89868 - 8/17/2021

On rare occasions, when you write to the memory map configuration area for a specific list of groov I/O modules, the groov EPIC processor may lock up or reset.

Cannot connect to MQTT broker using root CA-signed or self-signed certificate

Knowledge Base - KB89849 - 8/17/2021

The groov Manage MQTT client might not connect to the broker with a valid self-signed or CA-signed certificate and key file.

Unstable connection to MQTT broker using CA-signed or self-signed root certificate

Knowledge Base - KB89847 - 8/17/2021

The groov Manage MQTT client configured with a valid self-signed or CA-signed root certificate might be unstable (connecting and disconnecting erratically).

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

Knowledge Base - KB89829 - 11/2/2021

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.

Backup file missing a component; no error message

Knowledge Base - KB89762 - 10/26/2021

When you are creating a backup (from the groov Manage Home page, click Maintenance > Backup), if a component fails to back up, groov Manage does not display an error message and proceeds to download the incomplete backup file.

Viewing invalid float values on Generic MMP or Scratch Pad page causes incorrect behavior

Knowledge Base - KB89758 - 11/2/2021

When viewing float values on the Generic MMP page (from the groov Manage Home page, click I/O > I/O Tools > Generic MMP), an invalid value (for example, a NaN) causes the value field—and subsequent fields—to be blank.

Browser may fill in groov Manage fields (autocomplete)

Knowledge Base - KB89736 - 11/2/2021

Browsers may automatically fill in some groov Manage fields with undesireble text.

Can't restore Node-RED backups between GRV-EPIC-PR1 and GRV-EPIC-PR2

Knowledge Base - KB89714 - 11/2/2021

When uploading a Node-RED project backup file (from a GRV-EPIC-PR1) to a GRV-EPIC-PR2 (or vice versa), groov Manage displays the following error on the Check Device Model step: "The backup file is not compatible. It is from a different device."

Available disk space decreases significantly after a failed system restore

Knowledge Base - KB89613 - 11/2/2021

If you perform a restore (from the groov Manage Home page, click Maintenance > Restore) and it fails, temporary files may not be cleaned up, increasing the amount of used disk space.

MMP Calculator shows some invalid Modbus Addresses

Knowledge Base - KB89612 - 11/4/2021

The groov Manage MMP Calculator shows invalid Modbus values for MMP addresses 0xF1EC0000 or higher.

On external monitor, "Zoom in level" field does not show values

Knowledge Base - KB89609 - 11/2/2021

Using an external monitor, go to the Display page in groov Manage (Home > System > Display). The Zoom in level field shows three rectangles instead of a numeric value.

EPIC or RIO OpenVPN connection may not reconnect after session expiration

Knowledge Base - KB89580 - 12/27/2021

If you configure a groov EPIC or groov RIO with a user-locked OpenVPN connection profile connecting to an OpenVPN Access server, the groov EPIC or groov RIO client may not automatically reconnect to the server after the session expires.

PAC Project installs only on C: drive

Knowledge Base - KB89504 - 9/8/2021

When you try to install PAC Project 10.3 on a drive other than the C: drive, the installer displays the following message: Run time error (at 80:659): could not install proc.

Acknowledge button does not clear last diagnostic message for groov EPIC modules or groov RIO channels

Knowledge Base - KB89814 - 7/9/2021

Local I/O does not work after restart of EPIC with simple or serial modules on chassis

Knowledge Base - KB89800 - 7/9/2021

Strategy with "Start strategy after download completes" option does not start after downloading the Control Engine Download File (.cdf)

Knowledge Base - KB89634 - 9/8/2021

A strategy with the "Start strategy after download completes" option does not start after downloading the control engine download file (.cdf).

Creating new strategy allows existing strategy to be overwritten without warning

Knowledge Base - KB89807 - 9/8/2021

If you create a new strategy with the same name (and in the same folder) of an existing strategy, a new strategy will erase the contents of an existing strategy without any warning.

PAC Control: Condition block always evaluates as FALSE

Knowledge Base - KB89767 - 9/8/2021

In rare cases, after you import a chart into a strategy and then download and run the strategy, a condition block in the imported chart always evaluates as false.

When attempting to clear bits in a 64-bit integer table, the bits are set

Knowledge Base - KB89696 - 9/8/2021

PAC Display Configurator crashes while upgrading project to newer version

Knowledge Base - KB89476 - 9/8/2021

In rare cases, PAC Display Configurator may crash when it opens an older project. While it's opening the project, it closes without error.

PAC Display Runtime adds random characters in Operator Log File

Knowledge Base - KB89397 - 9/8/2021

If you configured PAC Display Runtime to log operator actions in an operator log file, when an operator enters the incorrect password, PAC Display Runtime stores the characters incorrectly.