Opto22 - Resources & Tools

A SNAP PID configured for manual mode starts in auto mode

Knowledge Base - KB88647 - 11/7/2019

If a PAC Control strategy has a PID configured with Mode set to Manual, when you run the strategy, the PID is started in Auto mode.

Strategy loaded from microSD card will not autorun

Knowledge Base - KB88606 - 11/7/2019

In a PAC Control strategy with the Autorun flag set, after you power up the controller with the strategy loaded from microSD card, the strategy does not autorun.

Move I/O Unit to Numeric Table command behaves differently with firmware R10.0 and newer

Knowledge Base - KB88239 - 11/7/2019

If your PAC Control strategy uses the Move I/O Unit to Numeric Table command on a serial B3000 analog address, it treats each analog module as having 4 points instead of 2. This will affect where the data is placed in the table.

Controller running strategy with subroutines may reset

Knowledge Base - KB88214 - 11/7/2019

If your PAC Control strategy contains more than one chart that calls a subroutine, and the strategy is run, modified, re-downloaded, and then run again, the controller may reset.

PAC Control Calculate Strategy CRC command may return wrong value

Knowledge Base - KB88148 - 11/7/2019

Using a pointer table in a PAC Control subroutine may result in unexpected behavior

Knowledge Base - KB88190 - 11/7/2019

You may observe erratic behavior if your PAC Control strategy contains logic that passes a pointer table as a parameter to a subroutine.

SNAP-AOVA-8 channels cannot be set via EtherNet/IP

Knowledge Base - KB88142 - 11/5/2019

Possible -25 (Port not locked) errors in controller's message queue

Knowledge Base - KB88085 - 11/5/2019

Persistent Variable data is not preserved when strategy updated from a microSD card

Knowledge Base - KB85948 - 11/5/2019

Move Numeric Table to I/O Unit [Ex] does not defer or propagate

Knowledge Base - KB80935 - 11/5/2019

When using a SNAP PAC S-series controller in a redundant system with the SNAP PAC Redundancy Option Kit, the Move Numeric Table to I/O Unit and Move Numeric Table to I/O Unit Ex commands update the I/O...more

Can't configure or read groov analog input

Knowledge Base - KB88633 - 10/22/2019

Tags are not refreshed correctly after a restart

Knowledge Base - KB88545 - 10/9/2019

When you work with Ignition or Ignition Designer and the Opto 22 groov EPIC and SNAP PAC Driver module, when tag lists are restored after some events, some of the OPC-UA tags may appear valid but are not updated with current controller values.

On-Pulse, Off-Pulse, and Period Measurement Complete Status don't return correct value

Knowledge Base - KB88473 - 10/9/2019

In a PAC Control strategy, GetOffPulseMeasurementCompleteStatus, GetOnPulseMeasurementCompleteStatus, and GetPeriodMeasurementCompleteStatus return an incorrect value.

SNAP I/O Watchdog not working

Knowledge Base - KB88530 - 10/9/2019

In PAC Control, if you configure the Watchdog feature on a SNAP analog or digital output point, when a watchdog condition occurs due to no activity to the I/O Unit for the period specified in the...more

groov I/O: TPO may not update percent on-time (duty) correctly

Knowledge Base - KB88528 - 10/9/2019

If your PAC Control strategy runs a Set TPO Period command followed by Set TPO Percent command, you may observe that the TPO period is cut short or extended for one period. This should not happen; any...more

Inaccurate readings from frequency measurements in groov I/O input modules

Knowledge Base - KB88588 - 10/8/2019

Errors or abnormal functioning with channels on GRV-IDCIFQ-12 module

Knowledge Base - KB88599 - 10/8/2019

In PAC Control, if you configure a channel on a GRC-IDCIFQ-12 module with a feature other than None or Quadrature Counter, commands related to the feature will result in an error in the controller's message queue and/or abnormal functioning.

PID, Analog Ramping, Streaming or CODESYS I/O data stalls when system time is changed

Knowledge Base - KB88572 - 10/7/2019

With Redundant Network System Type, secondary IP address not used when set to active

Knowledge Base - KB88297 - 10/4/2019

In PAC Terminal, if you right-click on a control engine with a System Type of Redundant Networks, then select Use Secondary Address, you'll see that in the Control Engines list, the control...more

PAC Control: Can't enter hex value when you configure or edit an integer variable

Knowledge Base - KB88414 - 10/4/2019

In PAC Control, when you configure or modify an integer variable and try to type in a hexadecimal value (for example, 0xA) in the Initial Value field, nothing happens. You should be able to enter a hexadecimal value.

I/O Point Mapping report shows one point in two different locations

Knowledge Base - KB88404 - 10/4/2019

If your strategy contains groov serial modules (GRV-CSERI-4) and you view/print an I/O Point Mappings report (File > View/Print > I/O Point Mappings) as Formatted (instead of Comma-separated), you'll notice that some of the points repeat.

With Redundant Network System Type, secondary IP address not used when set to active

Knowledge Base - KB88298 - 10/4/2019

For a PAC Control Engine configured with a System Type of Redundant Networks, if you set the Secondary IP Address as the active IP address , when in Debug mode, you could see the top of the inspect...more

LED gadgets don't display fill color in iOS/iPadOS 13

Knowledge Base - KB88576 - 10/2/2019

Command Button gadget sends '1' to Boolean tag, but it's interpreted as false

Knowledge Base - KB88505 - 10/2/2019

If you configure a Command Button gadget to send a 1 to a Boolean tag, it should be interpreted as TRUE. groov View incorrectly interprets it as FALSE.

In PAC Manager, watchdogs for digital outputs cannot be enabled

Knowledge Base - KB88319 - 10/1/2019

You can use PAC Manager to test the watchdog function on an output point, by enabling the watchdog timer, enabling the watchdog for the point, and setting the watchdog value. However, in the point...more