wits protocol
WITS Level 0 OPC Server. The Wellsite Information Transfer Specification (WITS) is a set of communications formats used for transfer of data between devices at the drill site. Further information on WITS is available here. WITS Level 0 is the lowest level of data transfer, and uses a simple ASCII format over a serial link (RS232/485) or network (TCP/IP). OPC Server. The Process IT WITS Level 0 OPC Server supports OPC Data Access (DA) 2.0, and includes a browsable server namespace.