Scan mode function extension for ASCII readers
3.3 Communication in scan mode
ASCII protocol for RF200
Operating Manual, 11/2016, C79000-G8976-C329-04
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The following table lists the status information that can be read out from the reader. The byte
count refers to the entry in the acknowledgement of the “Read status” frame.
Table 3- 16 Description of status information
1...21 Parameter content
A description of parameters can be found in the “Description of parameters” table in
section “Communication in scan mode (Page 26)”.
Note: Only the RF38xR reader supplies the “Physical interface” and “Transmit power”
parameters. RF200-ASCII readers return the specified, or default, parameter values.
Indicates the firmware version
For example: V xx.yy
Byte 23 contains the contents of "xx"; byte 22 contains the contents of "yy".
23
Indicates the hardware version (in ASCII format)
Indicates the FPGA version
This frame helps you when commissioning a reader. Test mode is enabled in the reader
immediately after the acknowledgement is transmitted. You can disable test mode by turning
the reader off or transmitting a new parameter record.
In test mode, the reader continually scans for a transponder. Successful scans (a
transponder has responded) as well as unsuccessful scans (incorrect or no response from a
transponder) are counted. The reader continually transmits the number of successful scans
to the host (all 20 scans).
The transmitted value provides information about how well a positioned in or passes through
the antenna field.
Table 3- 17 “Enable test mode” frame
BCC
Table 3- 18 “Enable test mode” frame acknowledgment
BCC