Opto22 - Resources & Tools

In a PAC Control strategy, the Flag Lock and Flag Unlock commands may result in the controller or processor locking up or resetting.

groov EPIC module LED may be red and module may not show up in groov Manage

Knowledge Base - KB88865 - 3/17/2020

If the LEDs for 1 or 2 modules on a groov EPIC chassis are red or the modules do not appear in groov Manage, you may be running into this issue. This issue does not affect simple modules (discrete groov I/O modules that provide on/off status only).

On an external monitor, top half of screen appears on bottom half of monitor

Knowledge Base - KB88874 - 3/17/2020

On an external monitor, the top half of the screen (for example, the top half of a groov Manage page) appears on the bottom half of the monitor.

PAC Control Seed Random Number creates the same seed value

Knowledge Base - KB88879 - 3/17/2020

If you use the PAC Control command Seed Random Number in a strategy running on a GRV-EPIC-PR1, the seed value will be the same every time.

GRV-EPIC-PR1 may lock up while running certain Node-RED nodes

Knowledge Base - KB88892 - 3/17/2020

You may observe lock-up symptoms like the following: GRV-EPIC-PR1 is unresponsive. The LEDs on groov I/O modules all turn red. Ethernet communication ceases. If the groov EPIC...more

PAC Control Debug mode: View I/O Unit displays data for empty positions

Knowledge Base - KB88889 - 3/11/2020

In PAC Control Debug mode, the View I/O Unit dialog box displays data for empty positions; the data appears in the Points Detail tab and the Points Compact tab. (Empty slots should contain no data.) This...more

No network access through OpenVPN Tunnel 0 interface

Knowledge Base - KB88856 - 3/24/2020

OpenVPN Tunnel 0 may show connected even if all network cables and WiFi adapters are unplugged.

Knowledge Base - KB88859 - 3/24/2020

"Send Email with Attachments" command may not send attachment

Knowledge Base - KB88872 - 3/17/2020

When using the PAC Control command “Send Email with Attachments” in a strategy running on a GRV-EPIC-PR1, if you use the “~/” path shortcut as part of the location of the attachment, the attachment will not be sent.

OpenVPN client may crash when disconnected from server

Knowledge Base - KB88857 - 3/17/2020

A disconnection from the network may cause the OpenVPN client on the GRV-EPIC-PR1 to crash.

XOR command with 64-bit integer operands returns incorrect results

Knowledge Base - KB88858 - 2/19/2020

Add/Edit User Page incorrectly shows "PAC Control REST API" permission as NONE

Knowledge Base - KB88799 - 3/24/2020

For built-in firewall rules, tun0 can't be set to "deny"

Knowledge Base - KB88771 - 3/24/2020

MQTT topics not being published from OptoMMP device

Knowledge Base - KB88763 - 3/24/2020

GRV-EPIC-PR1 may use additional network bandwidth

Knowledge Base - KB88756 - 3/17/2020

When using OptoMMP with Sparkplug-B payload, the MQTT service consumes additional network data bandwidth. There should be a Sparkplug publication only when data changes. With this issue, when there...more

In PAC Project Demo, PAC Display Basic Configurator does not start

Knowledge Base - KB88808 - 3/11/2020

In PAC Project Demo 10.2004 or 10.2005, PAC Display Basic Configurator does not start, displaying an error message about missing DLLs.

Update Auto Tags removes valid tag on I/O unit

Knowledge Base - KB88803 - 1/15/2020

Writing NaN (Not A Number float value) to analog output is not ignored

Knowledge Base - KB88780 - 3/17/2020

Writing NaN (Not A Number float value) to an analog output should be ignored. However, this issue causes the following: In PAC Control, when you read the analog output, you'll see 1.#QNAN. In...more

PAC Display Runtime: Graphics do not update on a window opened by a button

Knowledge Base - KB88728 - 12/20/2019

Some of the graphics on your PAC Display project are not updating properly.

PAC Display Runtime crashes when you quickly switch windows

Knowledge Base - KB88706 - 12/18/2019

If your PAC Display project has windows and buttons configured to open and close each other, and you quickly click the buttons to switch between windows, PAC Display Runtime crashes.

PAC Display Runtime crashes when quickly clicking on different buttons

Knowledge Base - KB88739 - 12/18/2019

If your PAC Display project has a page with several buttons configured with pop-up windows, quickly clicking on those buttons causes Runtime to crash, displaying a message that it needs to terminate.

PAC Control Engine becomes disabled when VPN is enabled

Knowledge Base - KB88700 - 12/17/2019

With PAC Control Engine running a control strategy on an EPIC PR1, enabling the VPN will cause it to stop responding. Disabling the VPN is the only way to get the PAC Control Engine running again.

Can't open groov View, groov Manage, or groov Admin from Chrome browser on macOS or iOS

Knowledge Base - KB88673 - 12/18/2019

When you use the Chrome browser on macOS 10.15 (or newer) or iOS 13 (or newer) to access groov Manage, groov View or groov Admin configured with a self-signed certificate, you receive the "Your...more