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LG MultiSITE
TM
VM3
Due to our policy of continuous product innovation, some specifications may change without notification.
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Reviewing and adjusting PlatformServices properties for MultiSITE VM3
Prerequisite: A station in the MultiSITE VM3 is running, and that station is opened in MultiSITE Supervisor.
1. In the Nav tree, double-click Services and then PlatformServices. Its “Platform Service Container Plugin” displays in the view pane.
Some properties are read-only status types, similar to many seen in the Platform Administration view. Other configuration properties can be
edited. A group of 3 config properties allow adjustment of the time, date, and time zone settings for the host MultiSITE VM3 (alternatively
accessible using a platform connection to the MultiSITE VM3). 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:
Note that you should leave the following properties at default values.
•
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”.
•
Engine Watchdog Policy: Defines response taken by the platform daemon if it detects a station engine watchdog timeout. With the watch
-
dog, the station periodically reports to the platform daemon its updated engine cycle count. The watchdog purpose is to detect and deal
with a “hung” or “stalled” station, and is automatically enabled when the station starts. Watchdog policy selections include the following:
a. Log Only: Generates stack dump and logs an error message in the system log. (The station should ultimately be restarted if a watch-
dog timeout occurs with the “Log Only” setting).
b. Terminate: (Default) Kills the VM process. If “restart on failure” is enabled for the station (typical), the station is restarted.
c. Reboot: Automatically reboots the host MultiSITE VM3 platform. If “auto-start” is enabled for the station, the station is restarted
after the system reboots.
• Engine Watchdog Timeout: Default is 3 minutes in Niagara 4, and range is from one minute to many hours. 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 dae
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mon causes the VM to generate a stack dump for diagnostic purposes, then takes the action defined by the Engine Watchdog Policy.
•
Enable 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 24 hours for any embedded MultiSITE VM3, range is from 1 to many hours.
• Station Auto-Save Versions to Keep: Default is 0. Oldest of kept backups is replaced upon next manual save or auto-save backup, once
the specified limit is reached. Significant flash space is saved by keeping this 0 or perhaps 1.
• RAM Disk: In MB (default is 1GB). Indicates the size of RAM disk used to store history and alarm files.
• Min Free: This sets the level at which Platform Services and Platform Admin show a warning.
3. Click Save to write any configuration change to the host MultiSITE VM3 platform.
PLATFORM SERVICES (STATION) AND
ADMINISTRATION