Intermec IP2L Basic Reader Interface Programmer's Reference Manual (BRI versio - Page 86
BRI Extensions for NXP Tags, NXPALARM
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Chapter 4 - BRI Commands Examples: Example 1: In this example, a reader has 2 general purpose outputs. The following table describes the possible values returned by the BRI for the WRITEGPO and the associate states of each of the outputs. Possible Values Returned for a Reader With 2 General Purpose Outputs BRI Value 0 1 2 3 Pin 1 State On On Off Off Pin 2 State On Off On Off Example 2: The following example turns on the first output on a device, and then turns it off. WRITEGPO 1 ON OK> WRITEGPO 1 OFF OK> BRI Extensions for NXP Tags This section lists BRI extensions that are specific to NXP RFID tags. NXPALARM Purpose: An extension to the READ command. When a READ command is executed with NXPALARM, the reader executes a read operation where only NXP tags with the EAS bit set are identified. This bit can be enabled when using the NXPEAS command. Note: No other data fields can be requested when executing the READ command with the NXPALARM extension. Syntax: Responses are not generated for each tag that is identified with the EAS bit enabled. Only a single alarm message will be generated, even if multiple NXP tags are identified with the EAS bit set. If EVENT is specified as the report type, an NXPALARM event is generated once an NXP tag with the EAS bit is identified. If EVENTALL is specified, an NXPALARM event is continuously generated while an NXP tag with the EAS bit set is in the reader field. The READ STOP command should be used to stop the READ NXPALARM operation when in continuous mode. READ [flex_query_selector]NXPALARM [TAGTYPE=EPCC1G2] [REPORT=EVENT|EVENTALL] 74 Basic Reader Interface Programmer Reference Manual