HERMOS LFM LP Reader - Error Message; Device Information and Control; Heartbeat

Protocol description ASCII, SECS/HSMS
Customer manual
Version 1.2
LFM LP Reader 15.01.2019
Page 50 of 119
HERMOS AG
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10.4.8 e – Error message
This message is only available in standard ASC-I1 mode!
If an error occurs the device will send an error message with the respective error code.
This message must be acknowledged by the host
Device Host
CMD
Reader-ID
Error ID
e
1 Byte
1 Byte
Further information about error codes and the corresponding measures can be found in the chapter
Error Codes.
10.4.9 H – Heartbeat
The command "H" sends a heartbeat request to the reader.
The reader responds with its serial number and a response code.
Host  Device
CMD
Reader-ID
H
1 Byte - also Reader ID F allowed
Device  Host
CMD
Reader-ID
Serial numberr
Response-Code
h
1 Byte
4 Bytes
4 Bytes
The heartbeat function can be performed for all 4 antenna ports (1-4).
If another reader is operated as a customer variant on the RS232 port, a heartbeat can be sent to the
external reader via reader ID "5".
The response code is part of the protocol but is not used for this device.
The response code is always '0000'.