Opto22 - Resources & Tools

If you include a "~" in a communication handle, you will receive a -417 error.

Knowledge Base - KB88494 - 8/27/2019

If you supply a value for Timeout to either the O22SnapIoMemMap::OpenEnet?() or O22SnapIoMemMap::OpenEnet2() methods, the timeout parameter is ignored.

Resetting GRV-EPIC-PR1 at start or end of RSS session may create unexpected behavior

Knowledge Base - KB88411 - 8/27/2019

If you reset or cycle power to the GRV-EPIC-PR1 when starting or disconnecting from an OptoSupport Remote Support Service (RSS) session, unexpected behavior may occur.

Table read returns wrong number of elements or error

Knowledge Base - KB88499 - 8/26/2019

Loss of controller host port communication

Knowledge Base - KB88495 - 8/26/2019

groov View for Android may crash when switching back to it

Knowledge Base - KB87698 - 8/22/2019

Switching back to the Android groov View app after using another application for several minutes may case the groov View app to crash.

Changing controller's string encoding doesn't take effect immediately

Knowledge Base - KB88135 - 8/21/2019

If you change the controller's string encoding, the change doesn't take effect immediately.

Help > groov Public API may result in "Can't read swagger" message

Knowledge Base - KB87607 - 8/21/2019

In Build mode of groov View, when you click Help > groov Public API, you'll see a message that says: Can't read swagger JSON from https://<your-pr1-address>/swagger.yaml

Certain PID loop options on groov EPIC I/O Units may not work

Knowledge Base - KB88377 - 8/20/2019

When you configure a PID loop on a groov EPIC I/O unit, the options to set the output or switch to manual mode when the PID input goes out of range may not work.

Control Engine not responding when Ethernet cable disconnected, then reconnected

Knowledge Base - KB88375 - 8/20/2019

Not Equal? condition always evaluates as true

Knowledge Base - KB88280 - 8/20/2019

Some conditions always evaluate to true

Knowledge Base - KB88259 - 8/19/2019

PAC Control condition blocks containing some comparisons will incorrectly evaluate as true when comparing an analog input or float variable that contains a NaN value.

System Update: Upload progress bar stops; banner turns red

Knowledge Base - KB88069 - 8/19/2019

During the Upload step of a system update (from groov Manage Home page, click Maintenance > Update), the progress bar will stop and the groov Manage title bar (in the background) will turn red. No error message is displayed.

PID mode in IVAL tab may be incorrect

Knowledge Base - KB88229 - 8/19/2019

In PAC Control Debug mode, on the IVAL tab of the View PID Loop dialog, the PID mode may be inaccurate (for example, auto instead of manual). The PID loop is running as expected and the PID mode is displayed correctly everywhere else.

Controller returns Status Code of -443 or -20 for HTTP Status Code of 204

Knowledge Base - KB88265 - 8/16/2019

If you run an HTTP Post from String table command with an empty body, the PAC Controller should return a Status Code of 0 because the HTTP Status Code for an empty body is 204, which is a valid response. However, the Status Code returned is -20 or -443.

Comm handle values may not be set correctly on groov EPIC Serial Module

Knowledge Base - KB88409 - 8/15/2019

In your PAC Control strategy, when you open a serial communication handle to a port on a GRV-CSERI-4 module, you may get garbled serial data.

Tag browser reports an error on some folders containing 25+ tags

Knowledge Base - KB88312 - 8/15/2019

When you browse for tags on your GRV-EPIC-PR1 configured as an OPC UA server, any folders with more than 25 tags will cause an error.

Values for BCD tags display as raw decimal

Knowledge Base - KB88253 - 8/15/2019

If a gadget in your groov View project is configured with a BCD tag on a Modbus device, when you run the project and groov View displays the value of the BCD tag, it displays it as decimal integer instead of BCD.

Reading LBCD tag on Modbus device causes "Unknown error" and disconnection from device

Knowledge Base - KB88177 - 8/15/2019

If a gadget in your groov View project is configured with an LBCD tag on a Modbus device, when you run the project and groov View reads the LBCD tag, you will see an "Unknown error" message and groov View will disconnect from the device.

In Build mode, modules don't appear in correct slot if GRV-CSERI-4 module is on the chassis

Knowledge Base - KB88157 - 8/15/2019

Some groov I/O modules appear in the incorrect slot position in the Module tree.

Open groov View in New Tab menu item opens groov Manage

Knowledge Base - KB88026 - 8/15/2019

If you are using groov View in Build mode on a GRV-EPIC-PR1 and click on File > Open groov View in New Tab, a new tab opens and shows groov Manage. It should show groov View.

Cannot enable communication to groov I/O unit

Knowledge Base - KB88418 - 8/15/2019

Under certain conditions after a PAC Control strategy has run, the control engine will not be able to enable communication to the affected groov I/O Unit and a -93 (I/O Unit Disabled) error will be posted to the control engine’s message queue.

groov Manage PAC Controller page may not show strategy information

Knowledge Base - KB88445 - 8/15/2019

When you go to the PAC Controller page (from groov Manage Home, click Controller > PAC Controller), the information in the Strategy section might be blank. If there is no strategy installed, the Name field should say "None".

Downgrading firmware may cause auto-restores to fail

Knowledge Base - KB88016 - 8/14/2019

With a particular combination of circumstances, an auto-restore will fail.