This method starts the scan process of the RFID reader device synchronous and returns the scan results. It overwrites the Scan method of the AutoIdDeviceType defined in 6.1.3.4.

Signature

Scan (

[in]ScanSettings Settings

[out]RfidScanResult [] Results

[out]AutoIdOperationStatusEnumerationStatus

);

Argument

Description

Settings

Configuration settings for the scan execution. The ScanSettings DataType is defined in 9.3.7.

Result

Results of the scan execution. The RfidScanResult DataType is defined in 9.3.12.

Status

Returns the status of the scan operation.

The AutoIdOperationStatusEnumeration DataType is defined in 9.2.1.

Method Result Codes

ResultCode

Description

Bad_MethodInvalid

The device does not support this function

Bad_InvalidState

There is already a scan active or this command is not available or not allowed e.g. due to special configuration

Bad_InvalidArgument

The scan setting contained an invalid value like infinite duration.

Other OPC UA status codes defined for the Call Service in OPC 10000-4.