Opto22 - Resources & Tools

Interactive Trends With Long Period Slow to Show Data

Knowledge Base - KB89564 - 3/1/2021

If you have an interactive trend configured with a long period (for example, 2 weeks), when you load the page with the trend, the trend may not display the data for up to 1/2 an hour.

Can't Set Color or Text for On/Off Text Fields When Data Source is Bit

Knowledge Base - KB89530 - 3/1/2021

If you set a bit of an integer tag as the source for a Value or LED gadget, groov View doesn't allow you to set the text (for Value gadget) or color (for LED gadget) for the appropriate On and Off fields.

groov View Classic Trend Performance Gradually Slows Down

Knowledge Base - KB89523 - 3/1/2021

The rate at which a Classic Trend refreshes and the responsiveness of the groov View page containing the trend may degrade over time.

Can't Clear Bit (0-31) Field on Gadget's Properties Panel

Knowledge Base - KB89503 - 3/2/2021

Timeout or "The secure channel has been closed" Error While Browsing Static Tags on a CODESYS OPC UA Server

Knowledge Base - KB89545 - 3/2/2021

Control Engine Host Communication Unresponsive Related to Strategy Download

Knowledge Base - KB89370 - 2/12/2021

Send Communication Handle Command Fails (-52 error) When Ethernet Cable Unplugged

Knowledge Base - KB88964 - 2/12/2021

When using an ftp communication handle in your PAC Control strategy with the command “Send Communication Handle Command”, it will fail with a -52 error under certain circumstances.

Enabling Communication to Unresponsive mistic I/O Unit May Cause Controller's Host Port to Stop Responding

Knowledge Base - KB89132 - 2/12/2021

Events Not Sending Email on GROOV-AR1 or GROOV-AT1

Knowledge Base - KB89539 - 2/8/2021

Events will not send email on the GROOV-AR1 or GROOV-AT1.

PAC Control: Some 32 Bits Commands Don't Copy Bit for Bit

Knowledge Base - KB89418 - 2/22/2021

Some PAC Control commands that should move values between a 32-bit integer and 32-bit float, bit for bit, so if you move an integer to a float and back, the value of the integer should be unchanged. With this issue, the value of the integer might change.

Redundant System I/O may not be Re-enabled after I/O Power Cycle

Knowledge Base - KB89414 - 2/22/2021

If an I/O unit on a redundant system is power cycled or rebooted, you may not be able to re-enable communication to it—either manually via the PAC Control debugger or programmatically&mdash...more

PAC Control: "Reset" Option on mistic PID has No Effect

Knowledge Base - KB89363 - 2/22/2021

On a mistic I/O unit, a PID control loop configured in PAC Control with the Reset option set may not behave as expected when placed into manual mode. Instead of being reset, the PID may remain active.

Treck Heap-Based Overflow Vulnerability in the HTTP Server Module

Knowledge Base - KB89219 - 2/12/2021

Buffer Overrun Vulnerability In EtherNet/IP Stack

Knowledge Base - KB89186 - 2/15/2021

Processing SNMP Requests While Sending SNMP Traps May Cause Device To Reset

Knowledge Base - KB89184 - 2/22/2021

The device may reset if it is simultaneously transmitting SNMP traps and processing incoming SNMP requests.

Redundant Variable Values not Maintained on Download

Knowledge Base - KB89161 - 2/22/2021

When using the SNAP PAC Redundancy Option Kit and you download a new version of a redundant strategy, values of redundant variables are set back to zero or NULL.

PAC Controller HTTP Status Return Code Incorrect

Knowledge Base - KB89137 - 2/22/2021

In PAC Control, when using the command HTTP GET, the HTTP code returned is the actual code multiplied by 65536. For example, if the return code is 13107200, the actual code is 13107200 divided by 65536, or 200.

Control Engine May Reset When Inspecting Variables and Stepping Through Subroutines

Knowledge Base - KB89381 - 2/12/2021

While debugging a PAC Control strategy under certain conditions involving subroutines and global variables, the PAC control engine may reset.

Cannot Clear Latches on RIO Digital Input Channels

Knowledge Base - KB89461 - 2/2/2021

In a CODESYS application, if you clear a digital input channel's on or off latch on a GRV-R7-MM1001-10 module, the latch is not cleared.

Digital Input Counters and Latches May Be Incorrect After Remote I/O Device Restart

Knowledge Base - KB89456 - 2/2/2021

If your CODESYS application contains a remote GRV-EPIC-PR1 or GRV-R7-MM1001-10 that has some digital input channels configured with counters or latches, if the remote device restarts, the counters and latches may have incorrect values.

GRV-IDCIFQ-12 on Remote EPIC May Not Retain Counter Feature After Restart

Knowledge Base - KB89451 - 2/2/2021

If your CODESYS application contains a remote GRV-EPIC-PR1 with a GRV-IDCIFQ-12 module that has some channels configured with the counter feature, the counter configuration on those channels may not be...more

GRV-EPIC-PR1 May Stop Functioning

Knowledge Base - KB89460 - 2/3/2021

The internal file system has a bug that may cause the controller to stop functioning.

CODESYS Cannot Access GRV-CCANI-2 Modules

Knowledge Base - KB89482 - 1/18/2021

Restored groov View project is Not Logging Events

Knowledge Base - KB88691 - 2/19/2021

After restoring a groov View project that includes Event Notifications, any new Event Notifications will not be saved to the Event log. Other Event Notifications configurations you selected (for...more

Not Responding Indication May Appear After Starting Strategy

Knowledge Base - KB89395 - 12/23/2020

Press the Run Strategy button in PAC Control Debug mode and the Run Strategy dialog appears. The dialog displays which IO unit is currently being configured to the user. Because GRV modules can take...more