Intermec IF2 Basic Reader Interface Programmer's Reference Manual (BRI version - Page 111

WRTRIES, Understanding the Timeouts and Tries, Setting IDTIMEOUT and ANTTIMEOUT

Page 111 highlights

Chapter 4 - BRI Commands WRTRIES Sets the number of times an attempt is made to write data to a tag on each [WRITE FIELD] before a response is returned to a WRITE command. Range is 1 to 254. Default is 3. This example tells the RFID reader to execute the write algorithm up to a maximum of three times to write data to the specified tags: ATTRIBUTE WRTRIES=3 Understanding the Timeouts and Tries This section will help you determine how to set these attributes: • ANTTIMEOUT • IDTIMEOUT • ANTTRIES • IDTRIES • INITTRIES You need to know if the TIMEOUTMODE attribute is enabled or disabled: • If TIMEOUTMODE is enabled, then you set ANTTIMEOUT and IDTIMEOUT. For help, see the next section, "Setting IDTIMEOUT and ANTTIMEOUT." • If TIMEOUTMODE is disabled, then you set ANTTRIES, IDTRIES, and INITTRIES. For help, see "Setting IDTRIES and ANTTRIES" on page 100 and "Setting INITTRIES" on page 102. Setting IDTIMEOUT and ANTTIMEOUT When you choose values for IDTIMEOUT and ANTTIMEOUT, you need to determine which attribute should have the larger value. When IDTIMEOUT

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Chapter 4 — BRI Commands
Basic Reader Interface Programmer Reference Manual
99
WRTRIES
Sets the number of times an attempt is made to write data to a tag on each [WRITE
FIELD] before a response is returned to a WRITE command. Range is 1 to 254.
Default is 3.
This example tells the RFID reader to execute the write algorithm up to a maximum
of three times to write data to the specified tags:
ATTRIBUTE WRTRIES=3<CRLF>
Understanding the Timeouts and Tries
This section will help you determine how to set these attributes:
ANTTIMEOUT
IDTIMEOUT
ANTTRIES
IDTRIES
INITTRIES
You need to know if the TIMEOUTMODE attribute is enabled or disabled:
If TIMEOUTMODE is enabled, then you set ANTTIMEOUT and IDTIMEOUT.
For help, see the next section, “Setting IDTIMEOUT and ANTTIMEOUT.”
If TIMEOUTMODE is disabled, then you set ANTTRIES, IDTRIES, and
INITTRIES. For help, see
“Setting IDTRIES and ANTTRIES” on page 100
and
“Setting INITTRIES” on page 102
.
Setting IDTIMEOUT and ANTTIMEOUT
When you choose values for IDTIMEOUT and ANTTIMEOUT, you need to
determine which attribute should have the larger value.
When IDTIMEOUT <= ANTTIMEOUT
If you set IDTTIMEOUT to a value smaller than or equal to ANTTIMEOUT, then
ANTTIMEOUT is a flag to indicate that the reader spends X IDTIMEOUT on each
antenna before moving to the next antenna. The total read time is approximately
equal to IDTIMEOUT multiplied by the number of antennas selected.
Suppose these attributes are set:
IDTIMEOUT=200
ANTTIMEOUT=600
ANTS=1,2
INITTRIES=1