Resources & Tools

26-50 of 6613 results
Current Outputs and Discrete Outputs Can Reduce Thermocouple Accuracy
Knowledge Base - KB88975 - Published:
On groov RIO GRV-R7-MM1001-10, thermocouple readings may be inaccurate when other channels are configured as current outputs or discrete sinking outputs. Current output or DC sinking output...more
GRV-EPIC-PR1 may not finish booting up
Knowledge Base - KB88947 - Published:
Very infrequently, the GRV-EPIC-PR1 may not finish booting up (the touchscreen shows a white screen with a green progress bar approximately 3/4 full) and all of the modules LEDs turn red.
System Time may be incorrect after reboot
Knowledge Base - KB88916 - Published:
If NTP is not configured or NTP cannot access the time servers (no internet access), when you manually set the time zone and time (from groov Manage Home, click System >  Time, then...more
2317 groov RIO Data Sheet
Documents - 2317 - Published:
This data sheet describes Opto 22's groov RIO® module, an edge I/O module for your remote Ethernet I/O for industrial internet of things (IIoT) and automation...more
Control engine may reset when Node-RED/PAC REST API access table data
Knowledge Base - KB88929 - Published:
If a Node-RED flow or PAC REST API code reads a recipe stored in a table in a controller strategy while PAC Display (or other HMI) is downloading a recipe to that table, the controller may stop responding or reset.
groov RIO Firmware
Downloads - Published:
This download contains current firmware for the groov RIO, including GRV-R7-MM1001-10. For a list of bug fixes and enhancements included in this firmware, see the groov RIO Firmware Readme.
White Paper: I/O for the IIoT
Documents - 2338 - Published:
In an era of increasing connectivity and technical capabilities, it seems like simple ideas should be simple to achieve. But industrial internet of things projects, even simple ones, are still...more
Webinar: Introducing groov RIO
Videos - Published:
Join Benson Hougland for a live presentation and demonstration of Opto 22's new groov RIO — I/O for the IIoT. Learn more about groov RIO  
CAD 3D Drawing: G4ODC Digital Output Modules
Downloads - Published:
This CAD file contains a three-dimensional drawing of G4ODC digital DC output modules, part of the G4 I/O family. The drawing applies to the following modules: G4ODC15 G4ODC24 G4ODC24A G4ODC5 G4ODC5A
CAD 3D Drawing: G4STRAP Jumper Strap
Downloads - Published:
This CAD file contains a 3-dimensional drawing of the G4STRAP, a 16-position jumper strap for G4 I/O. These jumper straps are sold in red as G4STRAPB or in black as G4STRAPB-BLACK. Both are packages of 10. 
groov Enclosures Data Sheet
Documents - 2340 - Published:
groov System enclosures make it easy to install Opto 22 groov EPIC and groov RIO products wherever you need them. These sturdy polycarbonate industrial enclosures protect your groov...more
S1 or S2 controller in a redundant system shows "non-qualified" when using persistent timer variables
Knowledge Base - KB88905 - Published:
In a redundant SNAP PAC controller system (using the SNAP-PAC-ROK), the PAC Redundancy Manager reports that the backup controller is "non-qualified" instead of "qualified." This issue occurs when using persistent timer variables. 
SNAP PAC controller in a redundant system may reset when you try to view errors in the queue
Knowledge Base - KB88854 - Published:
A SNAP PAC controller in a redundant system may reset when you try to view errors in the queue. This issue applies only to a redundant system using S-series controllers and the SNAP-PAC-ROK. 
Restore fails if Node-RED is disabled before power cycle
Knowledge Base - KB88907 - Published:
In groov Manage, if you disabled Node-RED (Home > Node-RED > Disable), then cycle power on your GRV-EPIC-PR1, and then try to restore a backup (Home > Maintenance > Restore), the restore will fail
Some tags showing incorrect values after GRV-EPIC-PR1 firmware update
Knowledge Base - KB88898 - Published:
If you set up MQTT with Sparkplug on your GRV-EPIC-PR1 to transmit from an OptoMMP device, after you install GRV-EPIC-PR1 firmware version 2.0.0, you may notice that some of the tag values seem...more