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US 2022/0004473 A1Published application
Bus System for a Process System
AssigneeKROHNE Messtechnik GmbH
InventorsDirk Kuschnerus, Lars Lemke, Sven Walbrecker
Life of this patent
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Abstract
A bus system for a process system, having a first bus subscriber which transmits bus messages and having at least one first bus subscriber which receives bus messages, wherein the transmitting first bus subscriber and the receiving first bus subscriber are connected to one another via a first data bus, wherein the transmitting first bus subscriber is designed such that it transmits control commands to the receiving first bus subscriber, wherein the receiving first bus subscriber is designed such that it executes the control commands of the transmitting first bus subscriber and achieves the object of providing a bus system that is designed to be fail-safe in a special way.
Claims15
A bus system for a process system, comprising:
- a transmitting first bus subscriber which transmits bus messages and a receiving first bus subscriber which receives bus messages, wherein the transmitting first bus subscriber and the receiving first bus subscriber are connected to one another via a first data bus, wherein the transmitting first bus subscriber transmits control commands to the receiving first bus subscriber, wherein the receiving first bus subscriber executes the control commands of the transmitting first bus subscriber;
- a transmitting second bus subscriber;
- a receiving second bus subscriber;
- wherein the transmitting second bus subscriber and the receiving second bus subscriber are connected to one another via a second data bus;
- wherein the transmitting second bus subscriber transmits control commands to the receiving second bus subscriber;
- wherein the receiving second bus subscriber executes the control commands of the transmitting second bus subscriber;
- wherein the transmitting first bus subscriber and the transmitting second bus subscriber are connected to one another via a monitoring communication channel and functionally monitor one another;
- wherein the first data bus and the second data bus can be connected to one another and disconnected from one another via a switching device which can be controlled by at least one circuit unit;
- wherein the first data bus and the second data bus are disconnected from one another in the simultaneous go state of the transmitting first bus subscriber and of the transmitting second bus subscriber;
- wherein, in the fault state of the transmitting first bus subscriber or in the fault state of the transmitting second bus subscriber, the circuit unit connects the first data bus and the second data bus to each other via the switching device so that the functional transmitting first bus subscriber is connected to the receiving first bus subscriber and the receiving second bus subscriber, or the functional transmitting second bus subscriber is connected to the receiving first bus subscriber and the receiving second bus subscriber;
- and
- wherein, in the fault state of the respective other transmitting bus subscriber, the functional transmitting first bus subscriber and the functional transmitting second bus subscriber transmit control commands both to the receiving first bus subscriber and to the receiving second bus subscriber.
9 more elements
The bus system for a process system, comprising:
- a transmitting first bus subscriber which transmits bus messages and a receiving first bus subscriber which receives bus messages, wherein the transmitting first bus subscriber and the receiving first bus subscriber are connected to one another via a first data bus, wherein the transmitting first bus subscriber transmits control commands to the receiving first bus subscriber, wherein the receiving first bus subscriber;
- executes the control commands of the transmitting first bus subscriber;
- a transmitting second bus subscriber;
- and
- a receiving second bus subscriber;
- wherein the transmitting second bus subscriber and the receiving second bus subscriber are connected to one another via a second data bus;
- wherein the transmitting second bus subscriber transmits control commands to the receiving second bus subscriber;
- wherein the receiving second bus subscriber executes the control commands of the transmitting second bus subscriber;
- wherein the transmitting first bus subscriber and the transmitting second bus subscriber are connected to a transmitting substitute bus subscriber via a monitoring communication channel;
- and
- wherein the transmitting substitute bus subscriber functionally monitors the transmitting first bus subscriber and the transmitting second bus subscriber;
- wherein the first data bus and the second data bus can be connected to one another and disconnected from one another via a switching device which can be controlled by at least one circuit unit, wherein the first data bus and the second data bus are disconnected from one another in the simultaneous go state of the transmitting first bus subscriber and of the transmitting second bus subscriber;
- wherein, in the fault state of the transmitting first bus subscriber or in the fault state of the transmitting second bus subscriber, the circuit unit connects the first data bus and the second data bus to one another via the switching device so that, in the fault state, the transmitting substitute bus subscriber is connected to the receiving bus subscriber of the transmitting bus subscriber via the monitoring communication channel, the functional transmitting first bus subscriber, the first data bus, and the second data bus (7);
- and
- wherein, in the fault state of the transmitting first bus subscriber, the transmitting substitute bus subscriber transmits control commands to the receiving first bus subscriber or, in the fault state of the transmitting second bus subscriber, the transmitting substitute bus subscriber transmits control commands to the receiving second bus subscriber.
12 more elements
Dependencies are inferred from the claim text.