Siemens SIMATIC Ident Function Manual page 44

Configuring the instructions
4.5 Programming instructions
Results for RF600
The number of "TAG_DATA[x]" elements of the data types of the ATTRIBUTE "0x80" and
"0x81" depends on the number of transponders to be expected. For this reason, you need
to assemble the receive buffer yourself. Not the following structure when creating the
receive buffer "IDENT_DATA"/data type:
• The first element "NUM_MDS" is always of the type "WORD".
• The next element "TAG_DATA" is always of the type "ARRAY". The number of
transponders to be expected ("n") must be entered in the "ARRAY".
The following tables show an example of the structure of the receive buffer
"IDENT_DATA"/data type for the ATTRIBUTE "0x80" and "0x81". Since ATTRIBUTE
"0x86" and "0x87" do not return any data, their structure is not further executed.
Table 4- 23 ATTRIBUTE "0x80"
Name
NUM_MDS
TAG_DATA
TAG_DATA[1]
Reserved
ID_Len
EPC_ID
tagPC
TAG_DATA[2]
...
TAG_DATA[n]
Table 4- 24 ATTRIBUTE "0x81"
Name
NUM MDS
TAG_DATA
TAG_DATA[1]
reserved
ID_LEN
EPC_ID
tagPC
RSSI
MaxRSSI
MinRSSI
channel
antenna
polarization
44
Type Comment
INT Number of MDS
IID_IN_I_80 Length of EPC ID
[n]
IID_IN_I_80
SINT
SINT Length of EPC ID
SINT[62] EPC-ID
INT
IID_IN_I_80
...
IID_IN_I_80
Type Comment
INT Number of MDS
IID_IN_I_81
[n]
IID_IN_1_81
SINT
SINT EPC length
SINT[62] EPC-ID
INT
SINT RSSI value
SINT highest RSSI value
SINT lowest RSSI value
SINT channel; 1..15_ESTI; 1..53:FCC
SINT antenna; bit coded;
0 = antenna 1; 1 = antenna 2;
2 = antenna 3; 3 = antenna 4
SINT polarizatuin of antenna;
0 = undefined; 1 = circular;
2 = vertical linear; 3 = horizontal
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 07/2020, C79000-G8976-C410-04