Connecting device, system and method for signal transmission between a control center and at least one field device in an industrial installation

A connecting device for use in an industrial installation, which device can be connected to an energy supply line, the connection device comprising:

• at least one first industrial bus interface configured to transmit first industrial bus output data using a first industrial bus protocol;
• a second industrial bus interface configured to transmit second industrial bus output data using a second industrial bus protocol;
• an energy communicator configured to receive and extract an energy bus input signal which is transmitted via the energy supply line using a carrier frequency method and contains first and second energy bus input data;
• and
• a demodulator configured to extract the first and second industrial bus output data modulated onto an industrial Ethernet protocol from the first and second energy bus input data and configured to forward the industrial bus output data to the first and second industrial bus interfaces for output on a respectively associated industrial bus.

A connecting device for use in an industrial installation, which device can be connected to an energy supply line, the connecting device comprising:

• at least one first industrial bus interface configured to receive first industrial bus input data and transmit first industrial bus output data using a first industrial bus protocol;
• a second industrial bus interface configured to receive second industrial bus input data and transmit second industrial bus output data using a second industrial bus protocol;
• a modulator configured to produce first energy bus output data by modulating the first industrial bus input data onto an industrial Ethernet protocol and configured to produce second energy bus output data by modulating the second industrial bus input data onto the industrial Ethernet protocol;
• an energy communicator configured to transmit the first and second energy bus output data together as an energy bus output signal on the energy supply line using a carrier frequency method and configured to receive and extract an energy bus input signal which is transmitted via the energy supply line using the carrier frequency method and contains first and second energy bus input data;
• and
• a demodulator configured to extract the first and second industrial bus output data modulated onto the industrial Ethernet protocol from the first and second energy bus input data and configured to forward the industrial bus output data to the first and second industrial bus interfaces for output on a respectively associated industrial bus.

A system for transmitting signals between a control center and at least one field device in an industrial installation, the system comprising:

• an energy supply line configured to supply the at least one field device with electrical energy;
• a first connecting device, wherein the first connecting device comprises:
• at least one first industrial bus interface configured to receive first industrial bus input data transmitted using a first industrial bus protocol;
• a second industrial bus interface configured to receive second industrial bus input data using a second industrial bus protocol;
• a modulator configured to produce first energy bus output data by modulating the first industrial bus input data onto an industrial Ethernet protocol and configured to produce second energy bus output data by modulating the second industrial bus input data onto the industrial Ethernet protocol;
• and
• an energy communicator configured to transmit the first and second energy bus output data together as an energy bus output signal on the energy supply line using a carrier frequency method, and wherein the first connecting device is configured to be connected to the energy supply line and configured to be connected to the control center via at least one first control center industrial bus;
• and
• a second connecting device, wherein the second connecting device comprises:
• at least one first industrial bus interface configured to transmit first industrial bus output data using a first industrial bus protocol;
• a second industrial bus interface configured to transmit second industrial bus output data using a second industrial bus protocol;
• an energy communicator configured to receive and extract an energy bus input signal which is transmitted via the energy supply line using a carrier frequency method and contains first and second energy bus input data;
• and
• a demodulator configured to extract the first and second industrial bus output data modulated onto an industrial Ethernet protocol from the first and second energy bus input data and configured to forward the industrial bus output data to the first and second industrial bus interfaces for output on a respectively associated industrial bus, and wherein second connecting device is configured to be connected to the energy supply line and configured to be connected to the at least one field device via at least one first field device industrial bus.

A method for forward signal transmission between a control center and at least one field device in an industrial installation, the industrial installation comprising an energy supply line configured to supply the at least one field device with electrical energy, the method comprising:

• receiving a first industrial bus input data transmitted via an associated industrial bus using a first industrial bus protocol;
• receiving a second industrial bus input data transmitted via an associated industrial bus using a second industrial bus protocol;
• producing first energy bus output data by modulating the first industrial bus input data onto an industrial Ethernet protocol;
• producing second energy bus output data by modulating the second industrial bus input data onto the industrial Ethernet protocol;
• and
• transmitting the first and second energy bus output data together as an energy bus output signal on the energy supply line using a carrier frequency method.

A method for reverse signal transmission between a control center and at least one field device in an industrial installation, the industrial installation comprising an energy supply line configured to supply the at least one field device with electrical energy, the method comprising:

• transmitting an energy bus input signal via the energy supply line using a carrier frequency method is received and extracted, the energy bus input signal containing first and second energy bus input data;
• transmitting first industrial bus output data using a first industrial bus protocol obtained from the first energy bus input data by means of extraction from an industrial Ethernet protocol;
• transmitting second industrial bus output data using a second industrial bus protocol obtained from the second energy bus input data by means of extraction from the industrial Ethernet protocol;
• and
• forwarding the industrial bus output data to the first and second industrial bus interfaces for output on a respectively associated industrial bus.