Siemens SIMATIC RF650R Configuration Manual page 51

Advanced settings
The "Advanced settings" area contains various general reader parameters.
Table 7- 3
Parameter
Expected number of
transponders
Status A/B flip
Modulation scheme
Carrier off delay [s]
Inventories without
intermission
SIMATIC RF650R/RF680R/RF685R
Configuration Manual, 03/2018, C79000-G8976-C386-06
Description of the parameters
Description
The number of transponders expected to be read with the reader. With this
input, the reader can optimize the transponder identification.
Value range
Increment
Activation/deactivation of the A/B flip function.
A/B flip is an extended method of the reader for identifying transponders. With
this function, large transponder populations can be identified quickly and relia-
bly. It takes into account the target status of the transponder that can be in
status "A" or "B".
This function divides each identification process into two steps. With the first
step in identification, all transponders with the status. "A" (default status) lo-
cated in the antenna field are identified. If a transponder is identified, it chang-
es briefly to status "B" before, depending on the set session, it automatically
changes back to status "A" shortly afterwards. With the second step in identifi-
cation, all transponders with the status. "B" located in the antenna field are
identified.
This increases the probability that all transponders will be identified.
Specifies the data transfer rate, radio, profile and coding:
Tx: Data transfer rate from reader to transponder
•
Rx: Data transfer rate from transponder to reader
•
Miller/FM0: Coding of the transponder signal
•
Miller is used with the "Dense Reader Mode". The "Dense Reader Mode"
allows the operation of neighboring reader systems on an identical fre-
quency channel. If an FM0 profile is selected, neighboring readers can
have greater influence on each other.
ISO 18000-62: Changeover of the transponder standard
•
When using transponders of the ISO 18000-62 standard (UCODE HSL),
this scheme must be used. Mixed operation with transponders of the ISO
18000-62 and ISO 18000-63 standard is possible. With the aid of the
"Set_Param" block or the XML command "setParameter" you can switch
over the modulation scheme during operation.
Off delay of the carrier frequency in seconds. This mechanism can reduce the
time required to access transponders that are accessed more than once in
succession. This time specifies how long the UHF carrier frequency remains
active after transponder access. During the off delay time, the reader is quick-
er when re-accessing transponders that have already been accessed.
Value range
Increment
Number of inventories to be taken without being interrupted by a send pause
(intermission).
1)
Value range
Increment
Configuring with the WBM
7.3 The menu items of the WBM
1 ... 1000
1
0 ... 25.5 s
0.1 s
1 ... 65535
1
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