SendCommand Method
Will format and send a PDU using the specified command identifier and payload.
Syntax
public byte [] sendCommand(int commandId, byte [] payload);
Remarks
This method offers a way to do more with the bean than is directly supported. This method takes a command identifier and a payload, which includes every required and optional field after the header, and will create the 16-byte header for it before sending it to the server. The response PDU is returned both in the PITrail and by this method.