User Manual

September 2001 S6350 Reader Reference Guide
36
ISO Read Multiple Blocks: Command Code (23
hex
)
ISO Read Multiple Blocks Request Command Packet
ISO Command DataHeader Packet
Length
Node
Address
Cmd
Flag
Cmd
Config.
Byte
Data
Check-
sum
‘01
hex
’ 2 bytes 2 bytes 1
byte
‘60
hex
’ Byte 0 bytes
1 - n
2 bytes
ISO Request Format
SOF Flags Read
Multiple
Blocks
UID 1
st
Block
#
# of
blocks
CRC1
6
EOF
Not
Used
1 byte ‘23
hex
’ 8
bytes
1 byte 1 byte Not
Used
Not
Used
ISO Read Multiple Blocks Response Packet
ISO Response DataHeader Packet
Length
Node
Address
Response
Flags
Command
Data
Check
sum
‘01
hex
’ 2 bytes 2 bytes 1 byte ‘60
hex
’ bytes
1 - m
2
bytes
Response when Error_flag is set
SOF Flags Error Code CRC16 EOF
Not
Used
1 byte 1 byte Not
Used
Not
Used
OR
Response when Error_flag is not set
SOF Flags Block
Security
Status
Data CRC16 EOF
Not
Used
1 byte 1 byte Block length Not
Used
Not
Used
Repeat as needed