Scansettings; Events - Balluff BIS U-6127-081-1 4-06-ST36 Betriebsanleitung

BIS U-6127-081-1_4-06-ST36
Processor unit
9
OPC UA (continued)

9.7.16 ScanSettings

This structure defines the settings for the Scan() (see
page 141) and ScanStart() (see page 146) methods.
Three parameters can be used to specify how long the
scan should last. The three conditions of d
and d a are related to each other. As soon as a
ata vailaBle
condition is fulfilled, the scan operation is terminated.
The structure is composed as follows:
Name Data Type
ScanSetting Structure
Duration Duration
Cycles Int32
DataAvailable Boolean
LocationType LocationType
(see chapter
9.7.8 on
page 162)
www.balluff.com
9.8
In this system, events of the type RfidScanEventTyp are
used. They are used as soon as the asynchronous
scanning mode (see page 146) is started from any
, c OPC-UA session. For each detected tag, an
uRation ycleS
R
information about the detection as well as about the tag
itself.
All sessions that have registered with the event will also
Description
have this delivered.
No event is generated for a tag that is no longer detected,
since this is not defined in the AutoID Spec.
Specifies the dura-
The RfidScanEventTyp event, which is derived from the
tion of the scan
generic AutoIdScanEventType, contains the following data
process in millise-
fields:
conds. The value 0
stands for infinite
RfidScanEventType
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.
Data types used
With , only the
falSe
RfidScanResult
parameters Duration
and Cycles are
considered.
Specifies the desired
type of location
information in the
result.
Only the Location-
Name type is sup-
ported.

Events

S e t event is generated. This event provides
fid can vent yp
Name Data Type
ScanResult RfidScanRe-
sult[]
DeviceName String
Name Data Type
CodeType CodeTypeData
(see page 162)
ScanData ScanData
Timestamp UtcTime
Location Location
Sightings RfidSighting[]
(see page 164)
Description
All detected tags are
output with informa-
tion such as EPC,
timestamp, RSSI
value, etc.
String with device
name
Description
Specifies the format
in which the scan-
ned data should be
output under Scan-
Data.
Data of the success-
fully scanned tag.
UtcTime on read.
Returns the location
where the tag was
detected.
Information about
each read of the tag
on an antenna:
1: Number of the
antenna
2: RSSI value
3: UtcTime at read
4: Transmitting
power used during
read
english 165