Balluff BIS U-6127-081-1 4-06-ST36 Betriebsanleitung Seite 288

BIS U-6127-081-1_4-06-ST36
Processor unit
8
007 protocol (continued)
If the command cannot be executed properly, a negative
status message follows.
Byte Length Command
element
00 1 Status
01 1 Status code
If the command is executed successfully, a positive status
message follows. This contains the number of data carriers
detected, the number of bytes transferred for the EPC of
each data carrier, and the number of data bytes transferred
per data carrier.
Byte Length Command
element
00 1 Status
01 1 Antenna number
(ASCII)
02...04 3 Number of data
carriers found
(ASCII)
05...06 2 Number of bytes
per EPC (ASCII)
07...12 6 Number of bytes/
data carrier
(ASCII)
13 1 BCC
If the status message is positive, data is requested with
<STX>.
Byte Length Command
element
00 1 Control com-
mand
If the data cannot be provided, a negative status message
follows.
Byte Length Command
element
00 1 Status
01 1 Status code
112 english
If the command is executed successfully, a positive status
message follows. This contains the first data packet and is
transmitted in the following format:
Value range
Byte
<NAK>
00
See table Status
codes on page
94 01
02...04 3
05...07 3
08...12 4
Value range
<ACK>
'0'...'4'
13...
"000"..."999"
Last
byte
Data block
"64"
The data block is transferred with the specified number of
bytes, which is given under d
"000000"...
The length of the individual data fields (Tag 1...Tag n)
"999999"
corresponds to the requested n
Length
00 ...FF
hex hex
64
Number of
Value range
bytes/data
1
<STX>
64
Number of
Value range
bytes/data
1
<NAK>
See table Status
...
codes on page
94
If further packets are available, they can be requested via
<STX>, the last transmitted data packet contains the
status <EOT>.
Byte
00
Length Command
element
1 Status
1 Antenna number
(ASCII)
Number of
packets (ASCII)
Packet number
(ASCII)
Number of bytes
in the following
data block
(ASCII)
No. of Data block
bytes
1 BCC
: n
ata Block
umBeR of ByteS
Command
element
EPC 1 (LSB...
MSB)
Data 1
Check byte 1
EPC 2 (LSB...
MSB)
Data 2
Check byte 2
...
Length Command
element
1 Control com-
mand
Value range
<ACK> or
<EOT>
'0'...'4'
"001"..."999"
"001"..."999"
"0000"..."9999"
Byte:
00 ...FF
hex hex
00 ...FF
hex hex
.
umBeR of ByteS
.
/
data caRRieR
Value range
Byte:
00 ...FF
hex hex
Byte:
00 ...FF
hex hex
00 : Valid
hex
FF : Invalid
hex
Byte:
00 ...FF
hex hex
Byte:
00 ...FF
hex hex
00 : Valid
hex
FF : Invalid
hex
...
Value range
<STX>