Operation
Executing a command and calling data
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | more@turck.com | www.turck.com
07.00 | 2022/09 | 209
HF bus mode
The time required for the cyclical processing of a command depends on the time in which the
tag is located in the detection range of the read/write head (bypass time). The default setting is
48 ms. The bypass time can be set by the user. If a different bypass time is set, the difference to
the time required for processing the command must be added to or deducted from it.
The time in which all read/write heads can be addressed once by the interface is calculated as
follows:
Number of read/write heads × bypass time
This time corresponds to the update rate for the Tag in detection range bit and must be taken
into account when calculating the total time for processing the command.
The inventory command must be executed separately for all read/write heads.
Command System cycle time Required time Dependence on factors such as
protocol, system etc.
Read UID at a read/write
head when rising edge TP,
tag in detection range
4 ms 24 ms The bypass time must be
added, depending on the
system cycle time.
Read UID at a read/write
head when rising edge TP,
tag in detection range
20 ms 80 ms
Read 112 bytes of different
read/write heads sequen-
tially, default bypass time
(48 ms)
4 ms 180 ms per read/write
head
The time for accessing the
individual read/write heads
varies.
UHF applications
Command System cycle time Required time Dependence on factors such
as protocol, system etc.
Read 12 bytes EPC 4 ms 120…220 ms not detectable
Write 12 bytes EPC 4 ms 260…400 ms not detectable
Read 1 kByte 4 ms 2500 ms ≤ 20 %
Write 1 kByte 4 ms 7300 ms ≤ 20 %
Inventory (100 tags, read/
write head in report mode,
dynamic application)
4 ms 5500 ms ≤ 20 %
To Next Page
Loading...
Need help?
General
