User's Manual

OPERATION 5
97
HF80 Transponder Reader – HSMS, Release 1.3
S18F71: SENSOR STATE (SS) (reader -> host)
This message reports the change of the state of one of the 5 presence
sensors of the reader. The TARGETID corresponds to the number of
the sensor. There are two states of the sensor. ON – the sensor is
covered, OFF – the sensor is uncovered in case of the sensor polarity is
not inverted.
S18F71
L,2
1. <TARGETID>
2. <SSTATE>
S18F72 SENSOR STATE ACKNOWLEDGE (SSA) (host -> reader)
The host has to acknowledge all incoming S18F71 messages.
S18F72
L,2
1. <TARGETID>
2. <SSACK> Æ “NO”