Balluff BIS U-6127-081-1 4-06-ST36 Betriebsanleitung Seite 322

BIS U-6127-081-1_4-06-ST36
Processor unit
9
OPC UA (continued)
ScanStart
This method can be used to start the asynchronous
scanning process (see Asynchronous operation on
page 24). Both the scan settings (call parameters) and
the set filters (see page 150) are taken into account.
Support for the scan settings with the ScanStart command
depends on the version of the device software.
The results of the scan are delivered in the form of
OPC-UA events (RfidScanEventType on page 165) and
are available for all sessions.
This operation can be stopped by the ScanStop method
(see page 146) or by ending the session.
Call arguments
Name Data Type
Settings ScanSettings
Output parameter
Name Data Type
Status AutoIdOperati-
onStatusEnu-
meration (see
chapter 9.7.2 on
page 161)
Structures used by input and output parameters
ScanSettings (see chapter 9.7.16 on page 165)
Name Data Type
Duration Duration
Cycles Int32
DataAvailable Boolean
LocationType LocationType
(see chap-
ter 9.7.8 on
page 162)
146 english
Description
Settings for how
long or how often
the scan should be
performed.
Description
Returns the result of
the operation.
Description
Specifies the dura-
tion of the scan
process in ms. The
value 0 stands for
infinite length.
Specifies the
number of scan
passes. The value 0
stands for infinite
number.
If this value is set to
, the scan will
tRue
stop as soon as
data is available.
With , only the
falSe
parameters Duration
and Cycles are
considered.
Specifies the desired
type of location
information in the
result.
ScanStop
This method is used to stop asynchronous operation.
SetAutoScan
This method can be used to switch the autonomous
scanning mode on and off for the corresponding session
(see Autonomous operation on page 27). In this mode,
the device performs cyclical data carrier detections without
the need to issue a command.
Min. Access Level: User
Default values: 0: (autonomous mode off)
Input
Name Data Type
AutoScan UInt16
GetAutoScan
This method returns the session setting of the autonomous
scanning mode. The value 0 means that autonomous
scanning is not active.
Return parameter
Name Data Type
AutoScan UInt16
Result AutoIdOperati-
onStatusEnu-
meration (see
chapter 9.7.2 on
page 161)
GetLastScanData
This method returns the last detected EPC of the current
session. It supports the output format set by the
SetCodeType() method (see page 149).
Return parameter
Name Data Type
LastScanData ScanData (see
chapter 9.7.14
on page 164)
Result AutoIdOperati-
onStatusEnu-
meration (see
chapter 9.7.2 on
page 161)
Description
0: Switch off auto-
nomous scanning
mode
1...65536: Scan
interval in ms
Description
0: Autonomous
scanning mode is
off.
1...65536: Scan
interval in ms.
Returns the result of
the operation.
Description
Last detected EPC
of this session.
Returns the result of
the operation.