Balluff BIS U-6127-081-1 4-06-ST36 Betriebsanleitung Seite 299

BIS U-6127-081-1_4-06-ST36
Processor unit
8
007 protocol (continued)
Command identifier '-R': Read data carrier, universal
Read formatted tag data from a data carrier that is within
the detection range of the specified antenna. The output
channel can be used to specify whether the request and
response are transmitted on the same TCP port (IN band)
or on different TCP ports (OUT band).
If there are several data carriers in the detection range of
the specified antenna, the desired data carrier must be
selected before reading (see Command identifier 'z': Select
data carrier (Select) on page 105).
Byte Length Command
element
00 1 Universal com-
mand identifier
(ASCII)
01 1 Command
identifier (ASCII)
02 1 Antenna number
(ASCII)
03...05 3 Reserved
06 1 Output channel
07 1 Output mode
08 1 BCC
Status message (only transmitted in output mode 'A' and
'F'):
Byte Length Command
element
00 1 Status
01 1 Status code
If the command is executed successfully, the requested
data follow on the defined data channel. The data
corresponds to the previously defined formatting.
Byte Length Command
element
00... Variable Formatted tag
data of the read
tag
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This is followed by the final status message, which
confirms a successful read or indicates an error (only
transmitted in output mode 'F').
Byte
00
01
Value range
'-'
'R'
'0': All active
antennas
'1'...'4': Single
antenna
'000'
'0': IN band
'1': OUT band
'A': Ack only
'F': Full status
'N': No status
00 ...FF
hex hex
Value range
<ACK> or
<NAK>
See table Status
codes on page
94
Value range
All values possi-
ble through the
format
Length Command
element
1 Status
1 Status code
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Value range
<ACK> or
<NAK>
See table Status
codes on page
94
123