* @return
* @throws SalsaDeviceException
*/
public ScanState getScanState(String scanServerName) throws SalsaDeviceException {
DeviceProxy scanServerProxy;
ScanState state;
scanServerProxy = getScanServerProxy(scanServerName);
try {
DeviceAttribute stateAttribute = scanServerProxy.read_attribute("State");
String stateString = AttributeHelper.extractToString(stateAttribute);
if ("ON".equals(stateString)) {