Siemens SIMATIC RF290R Configuration Manual page 108

Appendix
A.7 Example of read data
LED
PRE
ERR
When firmware is being downloaded, the "PWR"/"PRE" and "ERR" flash alternately.
If there is a hardware fault or EEPROM error, the "PWR" and "ERR" LEDs flash alternately.
A.7 Example of read data
The setting "LSB first" and "MSB first" (default value) specifies the order of the received data
bytes.
ISO 15693 host command (DB-SIZE of the transponder = 4 bytes)
108
Color Meaning
green Presence
Presence of a transponder in the antenna field was detected.
red Error
Error occurred:
•
•
Antenna impedance incorrect (not connected, disturbed by
metal, ...)
Disturbance level too high (inadequate signal-to-noise
ratio, external source of noise, ...)
Configuration Manual, 09/2014, C79000-G8976-C377-01
RF290R