User Manual

2022-11
48
IUH-F192-V1-*
Operation
Read Parameters
The RP command reads configuration parameters from the read/write head.
<SystemCode> = U
ASCII
for IUH-*
<ParamTyp> = 2 bytes ASCII
<DataLength> = Length of <Data> in command, 2 bytes binary
<Data> = Optional additional information
Example:
RP1UE5.00.00 outputs the number of unsuccessful read attempts until status 5.
Write Parameters
Command WP writes configuration parameters to the read/write head.
<SystemCode> = U
ASCII
for IUH-*
<ParamTyp> = 2 bytes ASCII
<DataLength> = Length of <Data>, 2 bytes binary
<Data> = Optional additional information
Example:
WP1UE5.00.01.05 sets the number of unsuccessful read attempts to status 5 on 5 attempts.
6.6.3 Parameters
Antenna Polarization AP
This parameter switches polarization to horizontally linear, vertically linear, or combined mode,
or reads out the polarization currently set.
Example:
WP1UAP.00.01H switches the polarization to horizontally linear
WP1UAP.00.01C switches the polarization to combined mode
RP1UAP.00.00 reads out the set polarization
Set the polarization to combined mode if the tag's orientation is not known. In combined mode,
horizontal polarization and then vertical polarization is used for each read/write attempt. This
achieves the same results as when circular polarization is used. The duration of the read/write
operation is extended in combined mode.
Command: RP <ChanNo> <SystemCode> <ParamTyp> <DataLength> <Data>
<CHCK> <ETX>
Response: <Status> <ChanNo> <Data> <CHCK> <ETX>
Command: WP <ChanNo> <SystemCode> <ParamTyp> <DataLength> <Data>
<CHCK> <ETX>
Response: <Status> <ChanNo> <CHCK> <ETX>
ParamTyp: AP
Default: AP = C
Value range:
C = combined
1
H = Horizontally linear
V = Vertically linear
1. Combined horizontally linear and vertically linear for each read/write attempt