Method and apparatus for providing in-vehicle network time synchronization using redundant grandmaster
US-9577817-B2 · Feb 21, 2017 · US
US10474119B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10474119-B2 |
| Application number | US-201615244035-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 23, 2016 |
| Priority date | Sep 15, 2015 |
| Publication date | Nov 12, 2019 |
| Grant date | Nov 12, 2019 |
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Systems, methods and apparatus are disclosed for interfacing process controllers in a process automation system with one or more intelligent electrical devices of an electrical automation system to use process and electrical control space information to perform actions and make decisions regarding actions in a connected enterprise system to facilitate energy management goals as well as process control goals in view of electrical control space information and process control space information.
Opening claim text (preview).
The following is claimed: 1. A method of providing time synchronization of facility wide data between a process automation system with one or more control devices to control one or more processes and an electrical automation system with one or more intelligent electrical devices (IEDs) to provide power to the process automation system, the method comprising: distributing a time signal from a timing device through a first network operatively coupled with the control devices of the process automation system, wherein the control devices include a variable frequency drive (VFD); distributing the time signal from the timing device through a second network operatively coupled with the IEDs of the electrical automation system, wherein the timing device is connected to a first switching device to distribute the time signal to the first network and the timing device is connected to a second switching device to distribute the time signal to the second network; shutting down a process of the one or more processes during a peak demand time period by using the process automation system to gather information from the electrical automation system; and executing an add-on instruction (AOI) in a process controller of the process automation system to selectively convert unsigned data from the IED into signed data and to scale the data from at least one of the IEDs according to user-defined scale factors to provide scaled data values for use by the process controller in controlling at least one process for the time synchronization of the facility wide data. 2. The method of claim 1 , wherein the timing device is a GPS receiver, a precision time protocol (PTP) master clock server, a network time protocol (NTP) server, a fly wheel converter technology device, or a simple network time protocol (SNTP) server. 3. The method of claim 1 , wherein the time synchronization facilities intelligent energy management decision-making and actions by at least one of the control devices in conjunction with process control decision-making and actions. 4. The method of claim 1 , wherein the time signal is distributed from the timing device over a standard Ethernet communication media. 5. The method of claim 4 , wherein the standard Ethernet communication media includes a wired network node, a fiber network node, or a wireless network node. 6. The method of claim 1 , further comprising configuring the process controller of the process automation system using an add-on profile (AOP) executed on a processor to define data to be exchanged between a given IED of the electrical automation system and the process controller according to an electronic data sheet (EDS) file corresponding to the given IED. 7. The method of claim 1 , further comprising executing the AOI in the process controller to scale the data from at least one of the IEDs in the form of unsigned integers to signed real values or floating point values. 8. The method of claim 1 , further comprising executing the AOI in the process controller to interface a signed data type to an industrial controller tag within a computing system environment. 9. A connected enterprise system, comprising: a process automation system, including one or more control devices operatively coupled with a first network and operative to control one or more processes, wherein the control devices include a variable frequency drive (VFD), the process automation system including a process controller; an electrical automation system, including one or more intelligent electrical devices (IEDs) operatively coupled with a second network and operative to provide power to the process automation system; and a timing device operative to distribute a time signal to at least some of the control devices through the first network, and to distribute the time signal to at least some of the IEDs through the second network, wherein the timing device is connected to a first switching device to distribute the time signal to the first network and the timing device is connected to a second switching device to distribute the time signal to the second network; wherein the process controller of the process automation system is configured to execute an add-on instruction (AOI) to selectively convert unsigned data from the IED into signed data and to scale the data from at least one of the IEDs according to user-defined scale factors to provide scaled data values for use by the process controller in controlling at least one process. 10. The connected enterprise system of claim 9 , wherein the first and second networks individually include a wired network node, a fiber network node, or a wireless network node. 11. The connected enterprise system of claim 9 , wherein the process controller of the process automation system is configured using an add-on profile (AOP) executed on a processor to define data exchanged between an IED of the electrical automation system and the process controller. 12. The connected enterprise system of claim 9 , wherein the process controller is operatively interconnected with a controlled process and with the first network to obtain electrical control space information, the process controller configured to implement one or more process control goals, and to implement one or more energy management goals at least partially according to process control information and electrical control space information obtained from at least one of the intelligent electrical devices (IEDs) of the electrical automation system.
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