Navigate Tags

The Navigate META tags are used to perform a task when the Client detects specific actions, such as signal strength changes, battery status changes, or scanned data. Use JavaScript or other functions to process the arguments that the Navigate tags use.

SignalNavigate

The SignalNavigate META tag is used to handle changes in the signal strength of the wireless network connection. The action occurs when the signal strength changes or when the device disconnects from the wireless network.

The three arguments (from left to right) are: signal strength, ESSID, and device MAC address. The signal strength ranges from 0-100. A signal strength result of -1 means "unknown." A signal strength of -2 means "disconnected from the wireless network." ESSID and MAC addresses may be "<unknown>".

For example:

<meta http-equiv="SignalNavigate" content="Javascript:onSignalStrength('%s', '%s', '%s');">

ScannerNavigate and ScannerProcessed

The ScannerNavigate META tag is used to handle raw scan data. The ScannerProcessed tag uses the scan data after it has been modified by the Industrial Browser or other scan handlers. (Industrial Browser scan handlers are set in the TE Client configuration settings.) The action occurs when information is scanned in.

If the action has zero to three arguments, then the arguments are (from left to right): the barcode data, the symbology type, and the time stamp.

If the action has four or five arguments, then the arguments are (from left to right): the barcode data, source scanner name, symbology type, time stamp, and barcode length.

You can also use the Web Default Scanner Auto Keys configuration setting to configure the default scanner action on web pages without using META tags. For more information on configuration settings, see Configuring Web Emulation Parameters.

BatteryNavigate

The BatteryNavigate META tag is used to handle changes in the battery strength or the AC line status. The action occurs when the battery strength changes or when the device is plugged in or unplugged.

The four arguments (from left to right) are: the AC line status, the strength of the main battery from 0-100, the strength of the backup battery from 0-100, and the main battery chemistry. A battery strength of 255 means "unknown".

For example:

<meta http-equiv="BatteryNavigate" content="Javascript:onBattery('%s', '%s', '%s', '%s');">

The following are the AC line status values:

The following are the battery chemistry values: