To review PlatformServices properties for the JACE-NXT

With a station in the JACE-NXT running, and that station opened in Workbench, do the following:

1. In the Nav tree, double-click Services and then PlatformServices.

   Its property sheet displays in the view pane, as shown in Figure 31.

   Many are read-only status types, similar to what is available in the Platform Adminstration view. Other configuration properties are available. A group of 3 config properties allow adjustment of the time, date, and time zone settings for the host JACE (alternately accessible using a platform connection to the JACE). Access to these properties is useful if the installation requires all setup access using a browser only.

2. As needed, review other platform service configuration properties, which include the following:

   It is strongly recommended that you leave the following properties at default values, unless otherwise directed by Tridium Systems Engineering.

   • Locale — Determines locale-specific behavior such as date and time formatting, and also which lexicons are used. A string entered must use the form: language [“_” country [“_” variant]]

     For example U.S. English is “en_US” and traditional Spanish would be “es_ES_Traditional”.

     For details, see Sun documentation at http://java.sun.com/j2se/1.4.2/docs/api/java/util/Locale.html.

   • Engine Watchdog Policy — Defines response taken by the platform daemon if it detects a station engine watchdog timeout. With the watchdog, the station periodically reports to the platform daemon its updated engine cycle count. The watchdog purpose is to detect and restart a “hung” or “stalled” station, and is automatically enabled when the station starts.

     Watchdog policy selections include:

     • Log Only — Generates stack dump and logs an error message in the system log.

     • Terminate — (Default) Kills the VM process. If “restart on failure” is enabled for the station (typical), the station is restarted.

     • Reboot — Automatically reboots the host JACE platform. If “auto-start” is enabled for the station, the station is restarted after the system reboots.

   • Engine Watchdog Timeout — Default is 1 minute, and range is from 0 ms to infinity.

     If the station’s engine cycle count stops changing and/or the station does not report a cycle count to the platform daemon within this defined period, the platform daemon causes the VM to generate a stack dump for diagnostic purposes, then takes the action defined by the Engine Watchdog Policy.

   • Engine Station Auto-Save — Either Enable (default) or Disable.

     Allows for “auto save” of running station to “config_backup_<YYMMDD>_<HHMM>.bog” file at the frequency defined in next property. Auto-saved backup files are kept under that station’s folder.

   • Station Auto-Save Frequency — Default is every (1) hour for the JACE, the range is from 1 to many hours.

   • Station Auto-Save Backups to Keep — Default is 3. Oldest of kept backups is replaced upon next manual save or auto-save backup, once the specified limit is reached.

     The remaining properties are read-only status properties, and provide statistics on platform resources including CPU, RAM, and file storage. However, the following property is unique (and appears) only if the CompactFlash-based JACE-NXT model.

   • EWF Overlays — Should contain two entries representing the RAM overlays of partitions on the JACE-NXT’s CompactFlash card, named “OS” and “History”. For each, the listed “State” should typically be “Enabled”. The listed “Command” should typically be “No_Cmd” for “OS”, and “Commit” for “History”. However, during commissioning or configuration other values may be present.

     For related details, see Notes on EWF (Enhanced Write Filter) in Windows XPE.

3. Click Save to write any configuration change to host platform.