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IUH-F190-V1-*, IUT-F190-R4-V1*
Operation
ParamTyp:
Default:
Value range:
1. For all FR1 read/write heads
2. For all FR2 read/write heads
3. For all FR1 read/write heads
4. For all FR2 read/write heads
Example:
WP1USM.00.02.27.10 sets the pause time to 10,000 ms = 10 seconds.
RP1USM.00.00 reads out the pause time.
Number of Attempts "Tries Allowed" TA
This parameter sets the permitted number of write or read attempts, or outputs the permitted
number of attempts.
ParamTyp:
Default:
Value range:
Example:
WP1UTA.00.01.01 permits precisely one attempt (= no repeats)
WP1UTA.00.01.03 permits 3 attempts
RP1UTA.00.00 outputs the permitted number of attempts
If the permitted number of write or read attempts between the read/write head and the tag is
increased, this results in:
More reliable reading and writing.
Increased response time.
6.7
Read/Write Head IUT-F190-R4-V1-* with Integrated RS-485 Inter-
face
The IUT-F190-R4-V1-* read/write head is connected to the RS-485 serial interface of the par-
ent device via a point-to-point connection. The read/write head has an internal terminator on
the RS-485 interface. Only 1 read/write head can be connected within an RS-485 network. It is
not possible to build an RS-485 network with multiple read/write heads.
Note
If you use an RS-485/RS-422 to RS-232 converter with automatic baud rate and mode
detection, communication problems may occur due to incorrect detection of these parameters.
In this case, select the operating mode of the converter manually.
The read/write head can be used in single-drop-mode and in multi-drop mode. In single-drop-
mode, the read/write head first executes the respective command and then sends the
response. This may take a few seconds. In multi-drop mode, the read/write head immediately
sends the confirmation that the read head has understood the command. The read head then
starts to execute the command. The actual result of the command must be queried by polling
the read/write head.
SM
1
SM = 100 ms
2
SM = 0 ms
100 ms ... 65,535 ms, 2 bytes
0 ms ... 65,535 ms, 2 bytes
TA
TA = 2
1 ... 255
3
4
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