Setting
RFID channels – overview of the commands
162
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Reading out the RSSI value
The RSSI value is output in binary code in 2 bytes and corresponds to the two's complement of
the output binary code. Mapped to a signed integer, the 2 bytes output correspond to ten
times the actual RSSI value. Refer to the following table for an example of the RSSI value:
MSB…LSB
(decimal)
MSB…LSB
(binary)
Two’s complement
RSSI (dBm)
252 253
11111100 11111101
-771
-77.1
Example: UHF read data (header and EPC, grouping deactivated)
Type
Name
Meaning
uint8_t
Size
14
uint8_t
Block type
1
uint8_t
Data [14]
uint8_t EPC [12]
uint16_t Number of the antenna (LSB
Ò
MSB) [2]
Example: UHF read data (header and EPC, grouping activated)
Type
Name
Meaning
uint8_t
Size
16
uint8_t
Block type
1
uint8_t
Data [16]
uint8_t EPC [12]
uint16_t Number of the antenna (LSB
Ò
MSB) [2]
uint16_t Number of the read operations (LSB
Ò
MSB) [2]
Summary of Contents for TN-UHF AUS-CDS Series
Page 1: ...Your Global Automation Partner Instructions for Use TN UHF CDS UHF Read Write Head ...
Page 2: ...2 Hans Turck GmbH Co KG T 49 208 4952 0 F 49 208 4952 264 more turck com www turck com ...
Page 97: ...V02 00 2020 08 97 Transfer the mapping to the POU Fig 94 Transferring the mapping to the POU ...
