Intermec IF2 Basic Reader Interface Programmer's Reference Manual (BRI version - Page 104

IDTRIES, INITIALQ, INITTRIES, LBTCHANNEL, Understanding the Timeouts and Tries on,

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Chapter 4 - BRI Commands IDTRIES Sets the number of times an attempt is made to find tags before a response is returned to a READ or WRITE command. Range is 1 to 254. Default is 1. For help setting this attribute, see "Understanding the Timeouts and Tries" on page 99. Do not set the IDTRIES attribute to 0. The BRI returns ERR if you attempt to set the attribute to 0. This example tells the RFID reader identify algorithm to execute three times in order to find all the tags that may be in the field: ATTRIBUTE IDTRIES=3 Note: This attribute applies and only if TIMEOUTMODE is disabled. Otherwise, IDTIMEOUT applies. INITIALQ INITTRIES LBTCHANNEL Establishes the initial Q parameter value used by the Query command for EPCglobal Class 1 Gen 2 tags only. Range is 0 to 15. Default is 4. If you know that there is only one tag in the field, you should set this attribute to 0 for the best possible performance. This attribute applies only to EPCglobal Class 1 Gen 2 tags. Sets the initialization tries variable in the reader. Range is 1 to 254. Intermec recommends that you leave this attribute set to the default, which is 1. For help setting this attribute, see "Understanding the Timeouts and Tries" on page 99. This example sets the INITRIES attribute to 1: ATTRIBUTE INITTRIES=1 Do not set the INITTRIES attribute to 0. The BRI returns ERR if you attempt to set this attribute to 0. Determines which channels will be the default transmit channel when executing the Listen Before Talk algorithm. LBTCHANNEL sets the default transmit channel of the available ETSI 302-208 channels. When you enable LBT scanning, the channel scan sequence starts with this LBT channel. When LBT scanning is disabled, (as in the 4 channel mode) the LBT channel is the only channel used. The range for 10 channel mode is 4 to 13. The default for 10 channel mode is 8, and for 4 channel mode the default is 7. With 865 MHz readers, channels 4 to 13 are available. Default is 8. With 953 MHz readers (special build), channels 1 to 9 are available. Default is 5. 92 Basic Reader Interface Programmer Reference Manual

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Chapter 4 — BRI Commands
92
Basic Reader Interface Programmer Reference Manual
IDTRIES
Sets the number of times an attempt is made to find tags before a response is
returned to a READ or WRITE command. Range is 1 to 254. Default is 1.
For help setting this attribute, see
“Understanding the Timeouts and Tries” on
page 99
.
Do not set the IDTRIES attribute to 0. The BRI returns ERR if you attempt to set
the attribute to 0.
This example tells the RFID reader identify algorithm to execute three times in order
to find all the tags that may be in the field:
ATTRIBUTE IDTRIES=3<CRLF>
INITIALQ
Establishes the initial Q parameter value used by the Query command for
EPCglobal Class 1 Gen 2 tags only. Range is 0 to 15. Default is 4.
If you know that there is only one tag in the field, you should set this attribute to 0
for the best possible performance.
This attribute applies only to EPCglobal Class 1 Gen 2 tags.
INITTRIES
Sets the initialization tries variable in the reader. Range is 1 to 254. Intermec
recommends that you leave this attribute set to the default, which is 1.
For help setting this attribute, see
“Understanding the Timeouts and Tries” on
page 99
.
This example sets the INITRIES attribute to 1:
ATTRIBUTE INITTRIES=1<CRLF>
Do not set the INITTRIES attribute to 0. The BRI returns ERR if you attempt to set
this attribute to 0.
LBTCHANNEL
Determines which channels will be the default transmit channel when executing the
Listen Before Talk algorithm. LBTCHANNEL sets the default transmit channel of
the available ETSI 302-208 channels. When you enable LBT scanning, the channel
scan sequence starts with this LBT channel. When LBT scanning is disabled, (as in
the 4 channel mode) the LBT channel is the only channel used. The range for 10
channel mode is 4 to 13. The default for 10 channel mode is 8, and for 4 channel
mode the default is 7.
With 865 MHz readers, channels 4 to 13 are available. Default is 8.
With 953 MHz readers (special build), channels 1 to 9 are available. Default is 5.
Note
: This attribute applies and only if TIMEOUTMODE is disabled. Otherwise,
IDTIMEOUT applies.