When configuring dynamic attributes in PAC Display Configurator, if you first configure an Operator-Driven attribute, the Value Tag Selection dialog box fails to display the Analog Input Point type ...moreWhen configuring dynamic attributes in PAC Display Configurator, if you first configure an Operator-Driven attribute, the Value Tag Selection dialog box fails to display the Analog Input Point type (which means you can't select analog input points) if you then try to configure a Controller-Driven attribute for the same object or for a different object.   <less

Round Gauge gadgets display raw tag values, regardless of the scaling factor you have chosen.Round Gauge gadgets display raw tag values, regardless of the scaling factor you have chosen. <less

In groov View, gadgets display messages about not being able to retrieve values for tags pointing to OPC-UA devices. You may also see messages about errors from com.opto22.groov.server.data.SubscriptionManager.   In groov View, gadgets display messages about not being able to retrieve values for tags pointing to OPC-UA devices. You may also see messages about errors from com.opto22.groov.server.data.SubscriptionManager.   <less

Mobile devices will not re-subscribe to tags after sleeping for several minutes.Mobile devices will not re-subscribe to tags after sleeping for several minutes. <less

If you try to run a groov View 4.0 (or newer) project on groov View 3.5, groov View fails to run and returns a "503 Service Unavailable" message.If you try to run a groov View 4.0 (or newer) project on groov View 3.5, groov View fails to run and returns a "503 Service Unavailable" message. <less

The SNAP PAC Learning Center is a fully functioning package of Opto 22 hardware and software designed to help you learn how to use the SNAP PAC System to meet your control, monitoring, and data acquisition needs.  The SNAP PAC Learning Center is a fully functioning package of Opto 22 hardware and software designed to help you learn how to use the SNAP PAC System to meet your control, monitoring, and data acquisition needs.   <less

This document provides detailed information on commands used in PAC Control, part of the PAC Project Software Suite. PAC Control is control programming software for the Opto 22 SNAP PAC System.This document provides detailed information on commands used in PAC Control, part of the PAC Project Software Suite. PAC Control is control programming software for the Opto 22 SNAP PAC System. <less

This document is the Legacy Edition of the PAC Control Command Reference. This guide includes all the commands that apply to both SNAP PAC and legacy hardware. Use this guide if your PAC Control...moreThis document is the Legacy Edition of the PAC Control Command Reference. This guide includes all the commands that apply to both SNAP PAC and legacy hardware. Use this guide if your PAC Control strategy includes SNAP Ultimate, SNAP Ethernet, SNAP Simple, or mistic I/O units. If your strategy works with SNAP PAC controllers and brains only, use form #1701 instead of this guide. <less

The SNAP Reed Relay modules use reed relays and do not provide optical isolation. Current rating depends on the voltage the module is used with. These modules were designed for a very low-voltage DC load...moreThe SNAP Reed Relay modules use reed relays and do not provide optical isolation. Current rating depends on the voltage the module is used with. These modules were designed for a very low-voltage DC load that is purely resistive (no inrush current). Because of their low 10 VA rating, these modules cannot be used with inductive or capacitive loads (even very small loads) nor 120 VAC. NOTE: For many applications a better choice is one of the SNAP-OMR6 series modules, which can handle a full 6 A at 0-250 VAC or 0-30 VDC. <less

DC output modules are used for controlling or switching DC loads.DC output modules are used for controlling or switching DC loads. <less

The ODC5R is a Form A mechanical relay I/O module. This module is ideal for applications requiring a dry-contact closure.The ODC5R is a Form A mechanical relay I/O module. This module is ideal for applications requiring a dry-contact closure. <less

Opto 22’s G4 family of modules includes two dry-contact, low-contact-resistance DC output modules, the G4ODC5R and the G4ODC5R5.Opto 22’s G4 family of modules includes two dry-contact, low-contact-resistance DC output modules, the G4ODC5R and the G4ODC5R5. <less

Readme for the latest update to the groov EPIC processor, part number GRV-EPIC-PR1. Includes information on new features, enhancements, and bug fixes for each application in the processor: GRV...moreReadme for the latest update to the groov EPIC processor, part number GRV-EPIC-PR1. Includes information on new features, enhancements, and bug fixes for each application in the processor: GRV-EPIC-PR1 firmware, PAC Control Engine, groov Manage, groov View, Node-RED, and Ignition Edge. <less

When you attempt to view the error messages in the processor's Message Queue that involve some of the new types of groov modules, the host task may lock up; in addition, PAC Control or PAC Terminal...moreWhen you attempt to view the error messages in the processor's Message Queue that involve some of the new types of groov modules, the host task may lock up; in addition, PAC Control or PAC Terminal may return an "invalid handle" error for the control engine. <less

Basic trends flicker, making it hard to view the data.Basic trends flicker, making it hard to view the data. <less

For I/O on a GRV-EPIC-PR1 I/O unit, no warnings are generated in the control engine error message queue when a strategy is run with an I/O configuration that specifies a channel type that is not...moreFor I/O on a GRV-EPIC-PR1 I/O unit, no warnings are generated in the control engine error message queue when a strategy is run with an I/O configuration that specifies a channel type that is not supported by the module that is physically installed on the chassis. <less

If you configure a text object to display either the control engine's Strategy Date or Strategy Time in your PAC Display project (Edit > Edit Dynamic Attributes > Text In from Control Engine ...moreIf you configure a text object to display either the control engine's Strategy Date or Strategy Time in your PAC Display project (Edit > Edit Dynamic Attributes > Text In from Control Engine > Setup By = String), Runtime won't display either. Instead, it will display a hash sign (#).   <less

The Replace in Entire Project feature (PAC Display Configurator > Edit > Replace > Search Scope = Entire Project, Search For = Control Engine) doesn't update control engine tag in the...moreThe Replace in Entire Project feature (PAC Display Configurator > Edit > Replace > Search Scope = Entire Project, Search For = Control Engine) doesn't update control engine tag in the "String Name" field in Historical Log files (but it should). <less

Sometimes when the Runtime Event Log has a large number of entries, messages may overflow the bottom of the list and into the dialog box.  Sometimes when the Runtime Event Log has a large number of entries, messages may overflow the bottom of the list and into the dialog box.   <less

If one of the tags for an Opto 22 device in a link is misspelled or doesn’t exist in the strategy in the controller or if one of the tags for an Opto 22 device is at an IP address that doesn'...moreIf one of the tags for an Opto 22 device in a link is misspelled or doesn’t exist in the strategy in the controller or if one of the tags for an Opto 22 device is at an IP address that doesn't exist or is unreachable, OptoDataLink may indicate the link is running, but it may fail to log any data—even if all of the other tags and/or IP addresses configured in the link are valid. If the link is configured to log to a file, the file will be created but it will be empty. <less

Sometimes when you open a project in PAC Display Configurator, you'll see the typical "loading" messages (for example, "Verifying and reading in data" or "Reading internal...moreSometimes when you open a project in PAC Display Configurator, you'll see the typical "loading" messages (for example, "Verifying and reading in data" or "Reading internal list objects") but the project never finishes loading.   <less

If your OptoDataLink project has data links that connect to different databases, when you view or try to modify the links, OptoDataLink may display a connection error message that reads, "Could...moreIf your OptoDataLink project has data links that connect to different databases, when you view or try to modify the links, OptoDataLink may display a connection error message that reads, "Could not connect to database. The ConnectionString property has not been initialized."   <less

Release Notes for PAC Project Software Suite, version 10.0. PAC Project Basic provides control programming, HMI development and runtime, and configuration and utility programs. PAC Project...moreRelease Notes for PAC Project Software Suite, version 10.0. PAC Project Basic provides control programming, HMI development and runtime, and configuration and utility programs. PAC Project Professional adds a robust OPC server, database connectivity, multiple PAC Display seats, controller redundancy, legacy hardware support, and a software-based controller for PC-based control. These release notes include new features and enhancements for PAC Control, PAC Display, and PAC Manager, as well as important notes on installation and use. For information about bug fixes in this release, see the PAC Project Readme Notes. <less

The .NET OptoMMP Software Development Kit (SDK) for groov EPIC and SNAP PAC provides an easy-to-use interface for a developer to quickly create an Ethernet I/O-based application for Opto 22 products...moreThe .NET OptoMMP Software Development Kit (SDK) for groov EPIC and SNAP PAC provides an easy-to-use interface for a developer to quickly create an Ethernet I/O-based application for Opto 22 products that use the OptoMMP protocol. This technical note shows you how to get started with the SDK. <less

The .NET Controller Software Development Kit (SDK) for groov EPIC and SNAP PAC provides a simple, easy-to-use interface for a developer to quickly create an application to access objects in a PAC...moreThe .NET Controller Software Development Kit (SDK) for groov EPIC and SNAP PAC provides a simple, easy-to-use interface for a developer to quickly create an application to access objects in a PAC Control strategy running on an Opto 22 groov EPIC processor or SNAP PAC programmable automation controller. This technical note includes system requirements and the basics of adding the SDK to your project, accessing documentation, and using assemblies. <less