Siemens SIMATIC RF650R

Appendix
A.3 Command and acknowledgement frames
SIMATIC RF650R/RF680R/RF685R
330 Configuration Manual, 03/2018, C79000-G8976-C386-06
A.3.4
PHYSICAL-READ
Reads data from a transponder by specifying the physical start address, the memory bank
(UHF) and length.
Table A- 8 Command
Byte
0, 1 2, 3 4 5 6, 7 8 9 10 11
Mean-
ing
DBL SN CC CI TDB DBN_H DBN_L DBL --
Value
78 -- 'p' 'U' 1 0 1 -- 0
Byte
12 13 14, 15 16, 17 18 ... 21 22, 23 24, 25 26 27 ... 88
Mean-
ing
SOURCE BANK ADRESS LENGTH PSWD -- -- IDLENGT
H
EPC-ID
Value
0
xx
xx
xx
xx
0
0
xx
xx
Table A- 9 Reply
Byte
0, 1
2, 3
4
5
6, 7
8
9
10
11 ... 239
Mean-
ing
DBL SN CC STATUS TDB DBN_H DBN_L DBL DATA
Value
--
--
'p'
xx
--
--
--
--
--
Table A- 10 Description of the bytes
Byte
Description
Command
12
Reserved (value = 0)
13 Memory bank on the transponder:
• 0x00 = RESERVED
• 0x01 = EPC
• 0x02 = TID
• 0x03 = USER
14, 15 Physical start address on the transponder:
• 0 ... 0xFFFF
16, 17
Number of bytes to be read
18 ... 21 Password for transponder access:
• 0x00 = no password
26 Length of the EPC ID:
• 0x00 = not addressed
27 ... 88
Buffer for up to 62 bytes EPC-ID
Response
11 ... 239
Data that exceeds 239 bytes is transferred in several blocks.