Pepperl+Fuchs OPC - Page 60

2015-07
60
OPC / OPD / OPE
Appendix
General
The library is used to support the creation of a graphic user interface for sensors
that use the VSX protocol. The library connects to the sensor and handles the
communication in accordance with the protocol. The user has functions for setting
parameters on the sensor, retrieving parameter values from the sensor, and
saving and loading whole parameter sets both locally and on the sensor. The user
can also receive sensor images.
The library is implemented in C# and requires .NET 2.0 or higher as a minimum.
Make sure that the libraries supplied are in the project's execution folder.
Creating an Object
Create an object to access the library functions.
PFVsxFactoryVCCustom _vsxFactory =new
PFVsxFactoryVCCustom();
Retrieving Parameter Data
Received parameter data is stored as a list in the sensor. Individual items of
parameter data from this list can be retrieved using the following function:
string GetSpecificSingleParameter(string version, string
configId, string parameterId)
Displaying Modified Data
If data is being received by the sensor, this is indicated by the event:
event ParameterDataReceived(DataModifier modifier)
Example!
Below is a sample program for integrating and triggering the sensor:
class Program
{
static void Main(string[] args)
{
PF.Foundation.VsxFactory.PFVsxFactoryVCCustom sensor;
sensor = new
PF.Foundation.VsxFactory.PFVsxFactoryVCCustom();
sensor.Connect("192.168.2.3", 50005);
sensor.SetSpecificSingleParameter(1, "Command",
"TriggerStart", "1");
System.Threading.Thread.Sleep(1000);
sensor.Disconnect();
}
}