Opto22 - Resources & Tools

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

Knowledge Base - KB91105 - 7/9/2025

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 - 7/9/2025

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

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

Updating module firmware in PAC Manager may fail when original firmware filename not used

Knowledge Base - KB91213 - 7/14/2025

When attempting to install module firmware in PAC Manager, you may encounter a “Command Failed” error message if the module firmware filename does not match the original filename of the file from the Opto 22 website (www.opto22.com).

The Closing Window Setup dialog in PAC Display hangs and cannot be dismissed

Knowledge Base - KB91221 - 6/24/2025

When clicking on a graphical dynamic object that jointly closes a window in PAC Display and performs an I/O (read or write) operation, a Closing Window Setup dialog may appear that cannot be dismissed.

Data Service reports connection errors when scanning string area of Scratchpad

Knowledge Base - KB91212 - 6/20/2025

Time is not restored correctly when the processor boots up

Knowledge Base - KB91227 - 6/20/2025

When the processor boots up, the time is not restored correctly. If NTP is configured and NTP servers are accessible, the correct time will be restored quickly enough that you might not notice this issue.

Some pages in groov Manage display "server offline" message

Knowledge Base - KB91222 - 6/20/2025

Configured PID loops do not appear correctly in PAC Manager

Knowledge Base - KB91132 - 6/10/2025

When you configure a new PID loop in PAC Manager, it may appear at the top of the configuration tree instead of in the PIDs folder under I/O Units.

groov Fix Gateway Backup Utility

Downloads - 6/11/2025

The groov Fix Gateway Backup utility fixes Ignition 8 version 8.1.21 and older gateway backup files (.gwbk) before you restore them to your groov EPIC or RIO running Ignition...more

Edition set incorrectly for Ignition 8 after upgrading firmware to version 4.0.0

Knowledge Base - KB91207 - 6/11/2025

Duplicating graphic objects in PAC Display may fail with a misleading error message

Knowledge Base - KB91187 - 6/4/2025

When using the Duplicate function (Edit > Duplicate) to copy graphic objects in PAC Display, the graphics may fail to copy, and a misleading error message appears.

GRV-OACS-12 LED channel indicators do not illuminate properly

Knowledge Base - KB91209 - 6/2/2025

The LED channel indicators of affected GRV-OACS-12 modules may not illuminate properly.

Case Study: Automotive Manufacturer Accelerates Digital Transformation

Documents - 2438 - 6/2/2025

View in HTML Moriroku Technology North America (MTNA), a Tier 1 automotive supplier operating four plants in the U.S. and Canada, faced a common manufacturing challenge: outdated reporting systems...more

CODESYS licenses missing after installing firmware

Knowledge Base - KB91189 - 6/3/2025

Some SNAP analog input modules report only NaN or -32768 to B3000-series brains

Knowledge Base - KB91204 - 5/29/2025

When any of the affected SNAP analog input modules are used with SNAP-B3000, SNAP-B3000-B, or SNAP-B3000-B-OMUX brains, the modules report only -32768 or NaN.

Installing firmware version 4.0.0 (or higher) with Ignition 8 fails at Decompression step

Knowledge Base - KB91192 - 6/11/2025

If you try to install version 4.0.0 (or higher) with Ignition 8 (for example, grv-epic-pr1-ignition8-4.0.0-b.106.field.bin) on a GRV-EPIC-PR1 that already has any version of Ignition, the installation...more

I/O Batch Operations page on GRV-R7-I1VAPM-3 has options that do not apply

Knowledge Base - KB91016 - 6/11/2025

The I/O Batch Operations page in groov Manage contains options that do not apply to GRV-R7-I1VAPM-3

SNAP I/O Modules Firmware Release Notes

Documents - rm_snap_io - 5/29/2025

This document lists the latest updates to the firmware for SNAP I/O modules. It includes information on new features, enhancements, and bug fixes. List of SNAP I/O module firmware download pages...more

PAC Control REST API stops responding to requests, reports error -113 (Unknown Error)

Knowledge Base - KB91190 - 6/11/2025

After running without issue for a period of time, requests sent to the PAC Control REST API on a groov EPIC will stop working, returning error -113 (Unknown error has occurred). The control engine on the groov EPIC may stop responding.

After a Wi-Fi configuration change, reconnection may take a long time

Knowledge Base - KB91051 - 6/11/2025

After changing the Wi-Fi configuration, the Wi-Fi connection may take up to five minutes to resume.

Activating Your groov EPIC Processor

Documents - 2312 - 10/27/2020

This document comes in the box with your groov EPIC processor (GRV-EPIC-PR1 or GRV-EPIC-PR2). It shows you how to activate your groov EPIC processor with the latest firmware after you...more

During EPIC boot up, GRV-OVMAILP-8 voltage outputs may not be at zero volts

Knowledge Base - KB91176 - 5/16/2025

When a groov EPIC unit with a GRV-OVMAILP-8 module is booting up or when the module is hot swapped, any channels configured as a voltage output may output a non-zero voltage for a few seconds.