Opto22 - Resources & Tools

Videos - 10/27/2025

In a factory setting, automation enhances speed and productivity. But, machine breakdowns can lead to significant downtime costs. This is where machine monitoring plays an important role...more

Switching between redundant Ethernet links may cause all digital output channels on a groov I/O module to turn on

Knowledge Base - KB91318 - 10/15/2025

If your strategy periodically turns on a digital output channel on a groov I/O module, and you have redundant Ethernet links (only available in PAC Control Professional) between an affected controller...more

Case Study: Automating Ecuador’s Largest Regional Water Project

Documents - 2444 - 10/9/2025

View in HTML When local leaders of Northern Ecuador commissioned a new regional water treatment plant to supply clean water to 300,000 people across five municipalities, the contractor knew that...more

POSTs to the SNAP PAC REST API may fail when the closing bracket is on a different line than the data

Knowledge Base - KB91226 - 10/8/2025

When attempting to send a POST to the SNAP PAC REST API, the POST may fail if the closing bracket is on a different line from the data.

Using 'Receive String Table' to read from a file may return -39 (timeout error)

Knowledge Base - KB91223 - 10/7/2025

Digital TPOs are enabled after I/O unit restart

Knowledge Base - KB91304 - 10/10/2025

Ignition gateway is restarted when it's already running

Knowledge Base - KB90793 - 10/1/2025

On the groov Manage Ignition page, if your selected platform is already running (you can see Running in the Status section) and you click Save, the platform is restarted (the gateway is fully...more

Tooltips appear incorrectly on graphics in PAC Display Runtime

Knowledge Base - KB91303 - 9/30/2025

When you hover your cursor over a graphic in PAC Display Runtime, you may see a tooltip appear in the wrong location with incorrect tag information, or a tooltip may not appear at all.

Attempting to download PAC Control strategy with redundancy fails

Knowledge Base - KB91152 - 9/30/2025

Case Study: Interlog Standardizes Solar Plant Monitoring Across Chile

Documents - 2443 - 9/9/2025

View in HTML Monitoring one solar plant is no small feat...so how about trying to monitor 30 of them scattered across 3,000 kilometers (1,864 miles), each with different hardware, software, and...more

Controller not reading in all characters of a file

Knowledge Base - KB91286 - 9/30/2025

On a SNAP-PAC-R1 (GEN2) controller, when you view the COM handle value through the Inspect dialog, it may show a smaller value of characters left to read than the actual number. When trying to...more

Filename from string tag may fail for trigger-based event in PAC Display

Knowledge Base - KB57406 - 5/23/2007

If a trigger-based event (such as a recipe or a historic data log) is configured to obtain a filename from a string tag in a PAC Control strategy, the filename retrieval may fail.

‘Find and Replace’ tool in PAC Control may not work correctly in OptoScript blocks

Knowledge Base - KB57575 - 5/23/2007

The Find and Replace function in PAC Control does not work correctly for OptoScript blocks. From the Find and Replace window, the Replace All button may cause the application to lock up or place the...more

In Ignition, dragging a tag into the Tag Browser changes status to Uncertain_LastKnownValue

Knowledge Base - KB91274 - 8/21/2025

In Ignition, when you drag a tag with a known good quality to the Tag Browser, the quality of the tag may change to Uncertain_LastKnownValue.

Case Study: Cannabis Grower Reclaims Control with Industrial Automation

Documents - 2442 - 8/12/2025

View in HTML Pearl Pharma, a cannabis cultivator based in Santa Rosa, CA, wanted full control over the quality and consistency of their plants, so they started building a brand new facility with 17...more

Case Study: Modernizing Data Acquisition in the Oilfield

Documents - 2441 - 8/12/2025

View in HTML With the completions sector relying heavily on manual processes, such as hand-recorded spreadsheets and equipment with no internet connectivity, it is a struggle to prove performance...more

Port redirect configuration disappears after updating firmware or restoring a backup

Knowledge Base - KB91270 - 8/22/2025

If you perform a firmware update with Backup Settings enabled or restore a backup, the port redirect configuration and rules are lost.

Port Redirect configuration not restored after power cycle

Knowledge Base - KB91262 - 8/21/2025

If port redirection is configured, and later power is cycled or you restart the unit using groov Manage, the configuration is lost.

groov Manage incorrectly reports Ignition 8 as disabled

Knowledge Base - KB91261 - 8/21/2025

Ignition may not start

Knowledge Base - KB91252 - 8/21/2025

When you try to enable Ignition or Ignition Edge, you may observe that Ignition doesn't start or, if Ignition does start, and then you restart your RIO, Ignition may not start.

Possible strategy corruption in PAC Control after copying/pasting OptoScript block with PID loop

Knowledge Base - KB91105 - 10/24/2025

If you copy an OptoScript block with a PID loop from one strategy and paste it into another strategy, you may encounter an “Undefined Command” error when attempting to download the strategy.

PAC Control strategies may not compile after renaming variables in OptoScript blocks

Knowledge Base - KB91238 - 10/24/2025

When attempting to compile a strategy after renaming an existing variable used in an OptoScript block in PAC Control, the strategy may not compile.

Size > “Height to Tallest” adjusts gadgets to shortest gadget

Knowledge Base - KB91180 - 7/2/2025

In Build mode, when you select a group of gadgets and then right-click to select Size > Height to Tallest, groov View should adjust the height of all the gadgets in the group to match the height of...more

Case Study: Ridge Vineyards Enhances Sustainability with Advanced Wastewater Automation

Documents - 2439 - 7/1/2025

View in HTML Since 1962, Ridge Vineyards of California has championed single-vineyard winemaking, embracing "pre-industrial" techniques that avoid modern additives and over-processing to...more

Partnering in Education Brochure

Documents - 2440 - 6/30/2025

This brochure explores the Opto 22 Education Partnership program, where educational institutions can receive support from Opto 22 to develop curricula; access training, hardware, and software...more