BIS V-6107 TCP/IP, USB
Processor Unit
58
Command ID 'P': Write data carrier
►
Writes USER data at the specified start address. The data length is equal to the number of
bytes.
►
The number of write data is limited to 1024 bytes. For larger data blocks use the command
Write data carrier, expanded
.
Note
A password is required to write to read-only data carriers. Write commands that are
attempted with an invalid password will be acknowledged with the status message
Password Required
or
Password Invalid
.
►
For details about access passwords refer to the manual for the UHF read/write
head.
Byte
Length
Command element
Value range
00
1
Command ID (ASCII)
'P'
01
1
Start address (ASCII) high byte
'0'…'9'
…
…
…
'0'…'9'
06
1
Start address (ASCII) low byte
'0'…'9'
07
1
Number of bytes (ASCII) high byte
'0'…'9'
…
…
…
'0'…'9'
12
1
Number of bytes (ASCII) low byte
'0'…'9'
13
1
Head number (ASCII)
'1'…'4'
14
1
Reserve (ASCII)
'R'
15
1
BCC
00
hex
…FF
hex
Acknowledgment:
Byte
Length
Command element
Value range
00
1
Status
<ACK> or <NAK>
01
1
Status number
See Status Num-
ber table
The reply then follows with the data block. Length of the data block is the desired number of
bytes (n).
Byte
Length
Command element
Value range
00
1
Control command
<STX>
01
1
Data
00
hex
…FF
hex
…
…
…
00
hex
…FF
hex
Last byte
1
BCC
00
hex
…FF
hex
Acknowledgment:
Byte
Length
Command element
Value range
00
1
Status
<ACK> or <NAK>
01
1
Status number
See Status Num-
ber table
9
Protocol
Summary of Contents for BIS V-6107
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