Method for data transmission
View Patent ↗The disclosure relates to a method for data transmission between a field device and an operating device, wherein the field device is designed to communicate with a higher-level device using a fieldbus protocol in order to perform an automation engineering task, and wherein the operating device is designed as a master for bit-serial point-to-point communication using a packet-based transmission protocol. It is proposed to encode the data to be transmitted according to the specification of the fieldbus protocol, and to carry it over the transmission channel using the packet-based transmission protocol.
1. A method for data transmission between a field device and an operating device, comprising:
establishing a transmission channel between the field device and the operating device, wherein the transmission channel terminates at each device through respective Universal Serial Bus (USB) interfaces on each device;
configuring the field device to communicate with a higher-level device using a fieldbus protocol for performing an automation engineering task;
configuring the operating device as a master for bit-serial point-to-point communication using a packet-based transmission protocol;
encoding the data to be transmitted according to a Highway Addressable Remote Transducer (HART) protocol;
embedding the encoded data into the packet-based transmission protocol of the operating device; and
transmitting the encoded data to the field device over the transmission channel using the packet-based transmission protocol; and
supplying power to the field device over the transmission channel.
2. The method as claimed in claim 1 , wherein the data to be encoded is carried over the transmission channel using the USB protocol.
3. A procedure for configuring a field device and an operating device for data transmission, comprising:
establishing a transmission channel between the field device and the operating device, wherein the transmission channel terminates at each device through respective Universal Serial Bus (USB) interfaces on each device;
configuring the field device to communicate with a higher-level device using a fieldbus protocol for performing an automation engineering task,
configuring the operating device as a master for bit-serial point-to-point communication using a packet-based transmission protocol, and
communicating data packets and power over the transmission channel, the data packets having embedded configuration data that is encoded according to a Highway Addressable Remote Transducer (HART) protocol,
wherein the data packets are transmitted according to a packet-based transmission protocol.