Power Modes

Power Modes

Always On

neoVI PLASMA is designed to be "always on" until its VNET power connection is removed. Various sleep and wake up settings are available to minimize power consumption.

Is My neoVI PLASMA Going to Sleep?

If you see ALL buttons and front facing LEDs suddenly turn yellow, then yes, it is going to sleep shortly.

Touch Screen Display Timeout

The Android operating system includes a screen timeout feature that can help save power. To change the timeout use:

Home / Menu / Settings / Display / Screen Timeout

When the screen timeout occurs the touch screen will go black, but it does NOT shutdown other parts of neoVI PLASMA or put it into any sleep mode. The LEDs will keep working to indicate it is still fully awake. To get the touch screen to appear again, you can tap on it or press any of the off-screen buttons.

Power Up Sequence (Table 1)

Connecting power first to neoVI PLASMA always starts its VS3ZIP script (if present). Connecting USB to PC first will prevent the VS3ZIP script from starting on its own.

Table 1: Results of neoVI PLASMA Power Up Sequence

Power Up Sequence	Result	LED Blink Pattern (neoVI PLASMA)
Power Only	VS3ZIP script starts* (if present)	Blink Red Only (LED #1)
Power then USB	Power 1st - VS3ZIP script starts* (if present) USB 2nd - neoVI PLASMA can be used with the PC, even after the script has started	Alternate Red / Green (LED #1 / #2)
USB then Power	USB 1st - neoVI PLASMA can be used with the PC Power 2nd - VS3ZIP script does NOT start*	Blink Green Only (LED #2)

*REMEMBER: The Wireless NeoVI website can also start, stop, clear and change VS3ZIP scripts in neoVI PLASMA from far away! So when using neoVI PLASMA with a PC, it is sometimes necessary to disable the Wireless neoVI application to clearly establish control over the device.

Power Management Using Standalone Logging Settings

When making a VS3ZIP script file using Vehicle Spy VehicleScape DAQ, the Standalone Logging Power Management options in Figure 1 offer great flexibility.

Figure 1: The Power Management area on the VehicleScape DAQ, Standalone Logging tab.

Sleep Triggers - There are four selections to choose from, with the last three having an adjustable timer setting.

Never - never sleep. This option can kill a car battery if not used correctly.

When Message Not Present - sleep after specific message is not on the network

On Expression - sleep after an expression is true

On No Bus Activity - sleep after the network(s) remain quiet

"Wake Up" Modes - These are not really wake up modes because these are actually three power modes that affect how neoVI PLASMA operates when awake OR asleep. These modes are summarized in Table 2.

Table 2: Power Management Modes in Standalone Logging

#	Mode	When Awake	When Asleep	Awake mA @ 12V	Asleep mA @ 12V
0	Normal	Everything runs.	Wakeup might miss first few messages.	~ 700	~ 10
2	Instant (HS/MS)	Everything runs.	Wakeup from HS or MSCAN will log first message.	~ 700	~ 44
7	Drowsy	Screen remains off, but script and SD card runs.	Wakeup from HS or MSCAN will log first message.	~ 180	~ 44

The # column in Table 2 is the value of the "Power Management Mode" signal found in the Vehicle Spy Expression Builder under the Physical IO, Power Management category.

Last Update: Sunday, May 5, 2013