Protocol description ASCII, SECS/HSMS
Customer manual
Version 1.2
LFM LP Reader 15.01.2019
Page 44 of 119
HERMOS AG
Gartenstrasse 19 Tel. +49(9279) 991-0
D-95490 Mistelgau Fax. +49(9279) 991-100
10.4.1 X – Read data
The command X starts reading of the data area from a transponder.
If there is no transponder in the read range of the antenna, the reader sends an error message (error 4
- no transponder).
The data element "page" can have the following values.
1) „E“ or „F“ in ID, Bit 0…3 of the read ID
If there is no transponder in the reading range of the antenna, the reader repeats the reading function
several times before an error message is sent. The number of repetitions is defined in parameter 4 ('r /
w maxrepeat'). If reading is still not possible, the reader sends the error message 'no tag (4)' to the host
after the repetitions have been carried out.
No confirmation is expected from the host.
For a multi-page read request (98 or 99), the protocol is retried. At the end of reading, the reader sends
an additional packet.
If the sensor check is activated (parameter 1: readmode), the assignment of the external input is
checked before the initiation of a read process by the host. The reading process is only started if the
sensor is occupied, otherwise the error message 'no tag (4)' is sent.
Read multiple pages to the end character or a blank
character 1)
Read out all transponder data
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