If the CompactFlash-based model (J-NXS-AX-FL) or any JACE-NXS model used with the NXS-UPS option (SITOP UPS and companion battery modules), a running station provides “platPower” monitoring of UPS-sourced power and battery values, including alarming capabilities. Using Workbench, access these values in a running station via its PowerMonitorService (under the station’s PlatformServices container).
The only UPS supported by the PowerMonitorService is the Siemens SITOP UPS, as furnished with a J-NXS-AX-FL model, and connected via USB cable to the JACE-NXS. If the JACE-NXS is installed without this UPS, this platform service child has no application, and can be safely ignored.
To configure power monitoring for the JACE-NXS
With a station in the JACE-NXS running, and that station opened in Workbench, do the following:
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In the Nav tree, click to expand the station’s Services, PlatformServices, containers to reveal all contained services.
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Double-click the PowerMonitorService.
Its property sheet displays in the view pane, as shown in Figure 31.
Many slots are read-only status monitoring properties, using either a “boolean” or “string” datatype. If needed, you can link any of these (or other) properties into station database logic or Px graphics.
These read-only monitoring properties include:
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Ups Talking
Boolean with values of either “
talking” or “no comm”, it indicates that the service was able to establish communications with the SITOP UPS through the USB cable. If the UPS is disconnected, a “Ups Not Found Alarm” is generated (see Ups Not Found Alarm Support container to configure). -
Ups Model
Text string that indicates model number read from UPS, which should read “
SITOP DC-USV 15” if Ups Talking property is “talking.” -
Ups Serial Number
Text string that indicates the serial number read from the UPS.
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Ups Data
Text string displaying the latest raw data string received from the UPS—typically, used only to diagnose problems.
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Primary Power Present
Boolean that indicates if DC power is present at the input to the UPS (“
dc ok”). An alarm is generated upon a transition to “dc low”. See Power Alarm Support to configure for this alarm. -
Battery Ok
Boolean that indicates how the last battery test performed by the UPS was evaluated (“
battery ok” or “battery failed”). An alarm is generated upon transition to “battery failed”. See Battery Alarm Support to configure for this alarm. -
Battery Charged
Boolean that indicates the charged state of the UPS battery pack, where either “
battery charged” if a charge >85%, or “battery not charged” if <85%. No alarms are generated. -
Running On Battery
Boolean that indicates whether the UPS is supplying power from the DC power supply (“
not running on battery”) or from the battery pack (“running on battery”). No alarms are generated.
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As needed, change configuration properties stored in the JACE-NXS platform, which include:
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Shutdown Delay
Defines the period that the JACE-NXS waits after detecting loss of primary power (Primary Power Present is “
dc low”) before initiating a graceful shutdown. If primary power is restored before this shutdown expires, no shutdown is performed.The default value is 1 minute, with a possible range of 1 to 15 minutes.
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Battery Alarm Support
A container for properties that define how platPower “battery alarms” are handled in the station, including the alarm class used, and other “alarm source info” type parameters.
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Power Alarm Support
A container for properties that define how platPower “primary power alarms” are handled in the station, including the alarm class used, and other “alarm source info” type parameters.
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Ups Not Found Alarm Support
A container for properties that define how platPower “UPS not found alarms” are handled in the station, including the alarm class used, and other “alarm source info” type parameters.
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Click to write the configuration to host platform.
