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System Update: Upload progress bar stops; banner turns red
Knowledge Base - KB88069 - Published:
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.
Controller returns Status Code of -443 or -20 for HTTP Status Code of 204
Knowledge Base - KB88265 - Published:
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.
Values for BCD tags display as raw decimal
Knowledge Base - KB88253 - Published:
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 - Published:
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.
Cannot enable communication to groov I/O unit
Knowledge Base - KB88418 - Published:
Under certain conditions after a PAC Control strategy has run, the control engine will not be able to enable communication to groov I/O Units 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 - Published:
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".
Set I/O Unit from MOMO Masks returns invalid address error for groov I/O
Knowledge Base - KB88461 - Published:
If your PAC Control strategy uses the Set I/O Unit from MOMO Masks instruction on a groov I/O unit, the I/O unit returns an invalid address error (-56) and no action is performed on the I/O unit.
Move Numeric Table To I/O Unit [Ex] returns invalid address error
Knowledge Base - KB88453 - Published:
If your PAC Control strategy uses the Move Numeric Table To I/O Unit[Ex] instruction on a groov I/O unit that contains analog channels, the I/O unit returns an invalid address error (-56).
Modbus/TCP does not report a cleared latch as cleared
Knowledge Base - KB88449 - Published:
If you clear an On and/or Off Latch through Modbus/TCP, it does not properly report the latch as cleared; however, groov Manage and the channel inspect window in PAC Control Debug Mode do show the latch as cleared.
Communication to groov I/O unit disabled with -56 error
Knowledge Base - KB88441 - Published:
In a PAC Control strategy that has a groov I/O unit, if a command results in a -56  "Invalid address" error in the control engine's message queue, communication to the groov I/O Unit...more
Opto 22 Responds to Inquiries Regarding URGENT/11
Knowledge Base - KB88456 - Published:
Information KB: Opto 22 Responds to Inquiries Regarding URGENT/11 Summary: No Opto 22 hardware or software products contain the VxWorks IPnet TCP/IP stack or variants of that software, and therefore...more
Reset I/O to Defaults does not clear TPO or set digital output channels to OFF
Knowledge Base - KB88247 - Published:
When you stop a strategy that turns on digital output channels or starts a TPO, then click Reset I/O to Defaults in groov Manage (Home > I/O > I/O Unit Configuration and Tools > Configuration)...more
Characters missing or incorrect when writing UTF-8 string on the Generic MMP page in groov Manage
Knowledge Base - KB88186 - Published:
When you write a UTF-8 string on the Generic MMP page in groov Manage (Home > Modules > I/O Unit Configuration and Tools > Generic MMP), some characters may not be correctly written.

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