Published Aug 16, 2021
Variable Speed Fans
The Fan device cards can now accept variable output outputs as fans. This allows 0-10v variable speed drive fans to be driven from the fan card.
The device drop-down list now includes both digital (on/off) and analog (voltage) type connections. If the connection is to a variable output, the 0-10 default may be changed to accommodate variable output devices with different voltages.
Visible Input Areas
Card title and description have always been editable on the back side of the card, but it was not easy to notice. This release adds a different background color to the card title and description to signify the fields are editable.
The underlying operating system of the Opto22 RIO allows free memory to reach critically low levels. This can cause performance issues, and in some cases can cause the RIO to freeze, requiring a power cycle to restart.
To prevent free memory from getting critically low, this release contains a periodic O/S memory cache flush to clear this memory before an application requests it.
This operation is scheduled to run daily, and can result in some fairly dramatic improvements in available memory:
Security & Stability Improvements
The climate sensor HMI would allow numbers too large to fit in the available space, so borders were re-aligned to offer more internal space for the LCD digits.
Fixed an issue where some cards marked out of service were not initializing properly on program restart, even after being placed into service.
Fixed underlying network failures that could result in excessive CPU usage, requiring power cycle.
Resolved by reducing the number of underlying network calls, and guarding against network instability.
Multiple Startups - A bug was discovered upon upgrading to 2021.7.8 where under certain conditions the controller start-up process could cycle several times before completing successfully.
Patch 2021.7.12 was prepared and 2021.7.8 was retired.