From OpenSCADAWiki
Internal structure of the output protocol
The internal structure is formed by the XML tree of the requests of the language OpenSCADA control interface with the reservation of the additional service attributes of the protocol in the root tag:
- rqDir — sign of the message sending through passing the procedure of the session opening (0-open session, 1-send immediately);
- rqUser — user;
- rqPass — password;
- rqAuthForce — force authentication update;
- conTm — force connection timeout, in milliseconds.