The Secure Industrial Protocol
DataHub Transfer Protocol (DHTP) is used by the DataHub®, SkkyHub®, ETK, and connected clients to send and receive data in real time over TCP across a LAN, WAN, or the Internet. Originally built upon HTTP, DHTP also supports SSL and WebSocket protocols. In continuous development for over 20 years, DHTP is open and documented in two parts, as the DataHub APIs and the DataHub Command Set.
SkkyHub and DataHub use DHTP to provide these important IIoT features:
DataHub seemlessly integrates DHTP with protocols native to commonly-used industrial applications, such as OPC, Modbus, ODBC, and MQTT. The ETK integrates OPC UA and Modbus.
As shown in the above diagram, DHTP may be used for the following connection types:
DHTP Protocol Features
DHTP communications between and among DataHub, SkkyHub, ETK, and their clients meet the following criteria for secure, robust industrial and IIoT data communications: