TransCore encompass 4, Manual

Page: 144 / 208

Chapter 7 Commands
TransCore Proprietary
7–127
Table 37 Presence Without Tag Report Commands
Command Report Option
6900 Disable presence without tag reports (factory default)
6901 Enable presence without tag reports
Reader response:
Done
Refer to “410N Select Unique ID Code Criteria (Anti-passback Feature)” on page 7–81 for message
format information.
692N Select RF Control Algorithm
Command #692N selects the algorithm for turning off RF power when RF-by-input control is enabled using
command #641 Select RF-by-Input Control.
The values for N specify the RF control algorithms as shown in Table 38 .
Table 38 RF Control Algorithm Commands
Command
RF Power Off
6920 On timeout only (
#529A0
)
6921 Timeout or tag ID acquired ( #529A1 )
6922 Timeout or presence false ( #529A2 , factory default)
Command #6920 turns off RF power based on the timeout established by command #693N Set RF
Timeout Period.
Command
#6921
allows RF power to be turned off either after the timeout period or upon acquisition of a
valid tag ID, whichever occurs first.
Command
#6922
turns off RF power either after the timeout period or upon the presence false condition,
whichever occurs first.
Reader response:
Done
693N Select RF Timeout Period
Command #693N selects the RF timeout period used by command #692N Select RF Control Algorithm.
Values for N range from 0 through F.
Command
#693F
disables the RF timeout. The reader turns off the RF immediately following the
acquisition of a valid tag, whether or not it is unique. This control algorithm may be used in Wiegand mode
to ensure that the tag data is transmitted once and only once per presence on both serial and Wiegand
ports.
Uppercase or lowercase characters are allowed for
N
; for example, hex digits A through F or a through f.
The commands and corresponding timeouts are shown in Table 39 .