V01.00 | 2021/05
17
8.3
IO-Link mode – process data
8.3.1
IO-Link mode – process input data
Byte no.
Bit
7
6
5
4
3
2
1
0
0
RDY
ERR
TAG
ANT
CMDCOPY
1
ERROR CODE
ALR1
ALR2
2
RSSI
3
ADDRESS
4…31
DATA 0…27 or UID7…0, STTI7…0, TIRT7…0
Meaning of the status bits
Designation
Meaning
RDY
1
Ò
0 or 0
Ò
1: Command executed, new data available
0 or 1: No new data available
ERR
0: Command executed error-free
1: Command executed with error
TAG
0: No tag within the detection range
1: Tag present at read/write head
ANT
0: RF field switched off
1: RF field switched on
ERROR CODE
See list of error codes
ALR2
0: Alarm 2 off
1: Alarm 2 on
ALR1
0: Alarm 1 off
1: Alarm 1 on
ADDRESS
Address of the first memory block on the tag on which a command was executed
DATA 0…27
Read data (LSB…MSB)
The read data is shown in bytes. Observe the block size of the tag used when evaluating the
read data:
n
EEPROM: 4 bytes per block
n
FRAM: 8 bytes per block
UID7…0
UID of the tag (MSB…LSB)
STTI7…0
System time at which the data was detected
TIRT7…0
Time in which the tag is located in the detection range
