Opto22 - Resources & Tools

The user-supplied MQTT Sparkplug client ID is ignored

Knowledge Base - KB91163 - 6/11/2025

If you configured the MQTT Sparkplug client on your groov EPIC or RIO to connect to an MQTT broker with a specific MQTT client ID, the configured MQTT client ID is ignored and a randomly generated client ID is used.

Get Date & Time command may not retrieve milliseconds atomically

Knowledge Base - KB91017 - 6/11/2025

If you use the PAC Control Get Date & Time command, the milliseconds may not have been obtained at the same moment as the other values (hours, minutes, and seconds) were obtained.

Converting date/time from integer 32 table to NTP and then back may introduce 1 msec discrepancy

Knowledge Base - KB90990 - 6/11/2025

If you run a series of commands to convert date/time from integer 32 table to NTP time stamp and then back to integer 32 table, you may occasionally observe a 1 msec discrepancy introduced during the conversion.

Command to delete a file fails if file name contains ~ character

Knowledge Base - KB90968 - 6/11/2025

If your PAC Control strategy has a command to delete a file where the ~ character is in the file path (for example, SendCommunicationHandleCommand( chFile, "delete" ), where chfile was set to...more

Warning messages repeated from apt-get update command

Knowledge Base - KB90935 - 6/11/2025

This issue applies only to shell users. When you run the sudo apt-get update command, you may see messages about "target translations configured multiple times" repeated many times:

SNAP analog input modules using R2.0a firmware may not operate normally

Knowledge Base - KB91167 - 5/21/2025

An impacted SNAP analog input module running the R2.0a firmware version may no longer appear in PAC Manager and may not operate normally.

Consecutive variable imports via .csv files crash PAC Control

Knowledge Base - KB91101 - 7/14/2025

When attempting another variable import after a successful variable import using comma-separated values (.csv) files, PAC Control may crash.

Random OptoOPCServer errors and/or PAC Display Runtime crashes

Knowledge Base - KB91057 - 5/1/2025

You may experience random errors in OptoOPCServer and/or OPC clients. When using PAC Display Runtime, you may experience random errors in both programs, and PAC Display Runtime may crash with the error...more

Inaccurate status information in PAC Control for I/O units configured for redundant networking

Knowledge Base - KB91042 - 5/1/2025

When inspecting I/O units configured for redundant networks in Debug mode in PAC Control Professional, the Address section on the Information tab of the Inspect dialog box may not accurately show the current network status.

EPIC or RIO users with "Do Not Expire" option are logged off

Knowledge Base - KB91169 - 5/21/2025

Case Study: Preventing a Data Center Shutdown

Documents - 2437 - 4/21/2025

View in HTML After an HVAC retrofit in 2022, the headquarters of a nationwide bank in Australia encountered an unplanned shutdown of their data center, which was critical to their banking operations...more

Some full-feature groov I/O modules may disrupt communication with groov I/O simple and serial modules

Knowledge Base - KB91168 - 4/17/2025

If an affected groov I/O module is inserted in one of the first five slots (positions 0 through 4) of the chassis, groov simple modules in positions 0 through 7 and groov serial modules (only supported...more

Opto 22 Demo from 2025 ProveIt! Conference

Videos - 4/8/2025

How can you integrate industrial assets into a UNS? Watch Opto 22's live demo–recorded from the ProveIt! Conference–to see how brownfield and greenfield assets integrate...more

Validate Recipe File utility in PAC Display fails to report missing blank lines in recipe files

Knowledge Base - KB91164 - 4/4/2025

When using the Validate Recipe File utility in PAC Display, missing blank lines may not be reported, and you may incorrectly receive a Recipe File successfully parsed! message in the results.

Unable to configure PID output using a groov RIO or GRV-MM1001-10 channel configured as TPO

Knowledge Base - KB90973 - 4/4/2025

If a groov RIO or a multifunction mixed-signal (GRV-MM1001-10) channel is configured with the TPO feature, you may be unable to add it as an output of a PID loop in PAC Control.

groov EPIC may restart while using groov View on a monitor plugged into the EPIC

Knowledge Base - KB90925 - 6/11/2025

If you have groov View running on an external monitor plugged into the groov EPIC, you may occasionally observe that the groov EPIC restarts.

groov Manage may display incorrect information about groov power supply

Knowledge Base - KB90860 - 6/11/2025

Some groov EPIC power supplies contain information to identify the power supply’s part number and design revision date. For those power supplies, groov Manage displays the following information in the About page, which is incorrect:

In groov Manage, the Autorun slider may not stay enabled

Knowledge Base - KB90324 - 6/11/2025

In the PAC Controller page of groov Manage, when you click the Autorun slider, it may not stay enabled if the strategy in permanent storage does not match the strategy that is currently in memory...more

AutoCorrect Tags results file from PAC Display fails to open in WordPad in Windows 11 version 24H2 and higher

Knowledge Base - KB91094 - 3/27/2025

If you are using Windows 11 version 24H2 or higher, the AutoCorrect Tags results file in PAC Display (Tools > AutoCorrect Tags) fails to open, and an error appears.

The incorrect tag name appears in the Configure PID Loops dialog box in PAC Control

Knowledge Base - KB91079 - 3/26/2025

An incorrect tag name may appear in the Output column of the Configure PID Loops dialog box in PAC Control if the configured output is a TPO output.

White Paper: Machine Monitoring with Edge Devices

Documents - 2436 - 3/24/2025

Keeping machines running smoothly is at the heart of every industrial operation. Machine monitoring helps avoid unplanned downtime by providing the real-time insights needed to catch problems early and...more

Incorrect errors may be reported when validating recipe files in PAC Display

Knowledge Base - KB91112 - 3/24/2025

When validating an upload and/or download recipe file in PAC Display Professional, you may encounter incorrect errors regarding invalid control engines.

SNAP-AITM and SNAP-AITM-i modules are misidentified in PAC Manager

Knowledge Base - KB91136 - 3/20/2025

In the Inspect mode of PAC Manager, the SNAP-AITM and SNAP-AITM-i modules are misidentified as “SNAP-AITM1” and “SNAP-AITM1-i,” respectively. This only affects how the...more

Opening a project that does not contain any windows crashes PAC Display

Knowledge Base - KB91128 - 3/20/2025

If you attempt to open a PAC Display project that does not contain any windows, PAC Display may crash.

Teaming Up to Enable Digital Transformation & Unified Namespace

Videos - 3/17/2025

How can your operations achieve seamless digitalization and a path toward a UNS? Watch this webinar recording, hosted by Inductive Automation, for an informative demo.