Prior to installing an older MNB-1000 (sitting in the office unused), the firmware was updated to the most recent release. Right at the completion of the upgrade, an 'Error 15' occurred. However, a power cycle of the controller seemed to reset it. The firmware revision was correct. A database was installed successfully and the controller communicated with the WorkPlace Commissioning Tool.
What does 'Error 15' signify and is it enough of a concern to not install it on a jobsite?
WorkPlace Commissioning Tool
Error 15 indicates that WorkPlace Commissioning Tool could not determine if the controller restarted.
Since a connection was possible after the firmware upgrade and a power cycle, then the MNB-1000 is fine to continue to use.