HERMOS LFM LP Reader - Querying Device Status and Parameters; Querying Inputs and Outputs

Protocol description ASCII, SECS/HSMS
Customer manual
Version 1.2
LFM LP Reader 15.01.2019
Page 58 of 119
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10.4.17 Q – Querying the status of the inputs and outputs
The Q command can be used to query the current status of all outputs. The status of the outputs is
queried in a message. In the current version, the value of the data element Head-ID always has the
value "1" for the outputs.
Host  Device
CMD
Reader-ID
Head-ID
Q
1 Byte
1 Byte
Device  Host
CMD
Reader-ID
Head-ID
Output
Index
Output
State
LED1
…
Output
State
LEDA
q
1 Byte
1 Byte
1 Byte
1 Byte
…
1 Byte
Example: Status LEDs
>> Q01
<< q012000000001 external LED (2 = flash), green status LED (1 = on)
The status of the input sensor can be queried via head ID „0“.
In this case, the answer contains the sensor state (0-1) instead of the 10 output states.
Example: Status of input sensor
>> Q00
<< q000