EP4168863A1 - Technik zum verarbeiten und austauschen von signalen zwischen feldgerät und steuerung - Google Patents
Technik zum verarbeiten und austauschen von signalen zwischen feldgerät und steuerungInfo
- Publication number
- EP4168863A1 EP4168863A1 EP21719662.5A EP21719662A EP4168863A1 EP 4168863 A1 EP4168863 A1 EP 4168863A1 EP 21719662 A EP21719662 A EP 21719662A EP 4168863 A1 EP4168863 A1 EP 4168863A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal processing
- plc
- processing module
- field device
- electrical signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Definitions
- the invention relates to the processing and exchange of electrical signals between at least one field device and a programmable logic controller (PLC).
- PLC programmable logic controller
- a signal processing module for processing the electrical signals and a system for exchanging the electrical signals are provided.
- the field devices include, for example, sensors and actuators.
- the sensors transmit input signals that represent the status of process variables to the controller.
- the actuators receive output signals from the controller and take measures to influence the process variables.
- Controllers with fixed input and output capabilities can be connected directly to field devices. More flexibility and functionality can be achieved by means of signal processing modules (for example I / O cards), which process the signals in the signal path between the field device and the controller.
- signal processing modules for example I / O cards
- Document EP 3 149550 A1 describes an I / O interposer system for processing an I / O signal which is transmitted between an I / O field device and a controller.
- the system includes a base, an interposer circuit carrier (ie, an I / O card), and an electrical connector.
- the electrical connector is attached to the base with a first connector half (ie a slot) and to the interposer with a second connector half.
- Circuit carrier attached.
- the first and second connector halves are optionally engageable with one another to attach the interposer circuit carrier to the base.
- the greater flexibility and functionality is associated with greater maintenance costs and additional sources of error when setting up or upgrading for the first time. For example, you must ensure that the correct I / O card is installed in the correct slot. For example, if one of the I / O cards is defective, it must be identified in the control cabinet and replaced.
- the invention is therefore based on the object of providing a technique for processing and exchanging signals between at least one field device and a controller which reduces or prevents the set-up and maintenance effort conventionally associated with flexible functionality.
- a first aspect relates to a signal processing module for processing electrical signals exchanged between at least one field device and a programmable logic controller (PLC).
- the signal processing module comprises a first connection component which is designed to connect the signal processing module with the at least one field device and the PLC in an electrically conductive manner.
- the signal processing module comprises a communication component which is designed to send information signals to the PLC.
- the signal processing module also includes a signal processing Component which is designed to process the electrical signals exchanged between the at least one field device and the PLC according to a functional scope of the signal processing module, the information signals indicating the functional scope.
- the PLC can determine whether a (for example, functional) correct or sufficient one Signal processing module is available.
- a process controlled by the PLC when a process controlled by the PLC is changed or expanded (which is implemented, for example, by means of the at least one field device), it can be determined whether this process can be carried out by means of the functions of the signal processing module according to the scope of functions.
- the PLC can check a sequence control of the process step by step to ensure that a function required in each step is included in the specified scope of functions.
- the PLC (for example in a system for exchanging the electrical signals between the at least one field device and the PLC) can be electrically conductively connected to several second connection components and, based on the specified scope of functions, check whether the signal processing module has its first Connection component is electrically conductively connected to the correct second connec tion component.
- the (preferably processed) electrical signals from the signal processing component can be sent to the PLC by means of the communication component (preferably via the first connection component).
- the electrical signals (preferably to be processed) can be sent from the PLC by means of the communication component (preferably via the first connection component) are received and passed to the Signalver kau component.
- the communication component can provide a serial interface to the PLC (for example on the control-side portion of the first connection component).
- the PLC can provide a corresponding serial interface to the signal processing module (for example at the port of the PLC that is electrically connected to the second connection component).
- both the electrical signals and the information signals can be exchanged via the serial interfaces connected to one another by means of the first and second connection components.
- the communication component and / or the signal processing component can be designed to send the information signals indicating the functional scope.
- the information signals indicating the range of functions can be sent (preferably to the PLC) in response to the electrically conductive connection (for example the first connection component with a corresponding second connection component to the PLC) and / or in response to the electrically conductive connection of the signal processing module to the PLC and / or in response to a request for the scope of functions received from the PLC (for example wirelessly or via the first connection component).
- the electrically conductive connection can include, for example, bringing the first connection component into contact with a second connection component.
- the electrical signals can include one or more values (for example an actual value in the input signal or a setpoint value in the output signal) and / or can be used to transmit one or more values.
- the values can relate to process variables.
- the at least one field device can be part of a (for example manufacturing or process engineering) system and / or a technical device in the field of automation technology, for example that can be used or can be used in an automation process.
- the PLC can be briefly referred to as a controller.
- the PLC can be an automation controller.
- the at least one field device can be arranged remotely from the PLC.
- the at least one field device can be remotely controlled by means of the electrical signals from the PLC.
- the processing of the electrical signals can include, for example, converting and / or evaluating the electrical signals.
- the at least one field device can comprise an actuator and / or a sensor.
- the actuator can be an actuator or a valve.
- the field device can comprise a sensor and / or the field device and / or the signal processing component can comprise a measuring transducer.
- the measuring transducer can be designed to convert an input variable received from the sensor into an output variable in accordance with a fixed relationship.
- the range of functions can determine the transmitter.
- the scope of functions can indicate whether a measuring transducer is present and / or whether the measuring transducer is a measuring transducer, a measuring amplifier and / or a measuring converter.
- the PLC can be a controller for controlling and / or regulating the at least one field device, for example an automation process.
- the PLC can, for example, read out information from the field devices and / or send the control commands to the field devices. Furthermore, the PLC can process the information and / or control commands on the basis of, for example, a user program.
- the PLC can be controlled and / or read from another PLC and / or control room.
- the control room can include a further PLC, which can be designed to control and / or read out the PLC. Reading out can include reading out the exchanged electrical signals and / or status reports from the signal processing modules.
- the first connection component can be an electrical connection component with a plurality of electrical contacts. As an alternative or in addition, the first connection component can be a connector half, for example a socket, a built-in plug or a contact strip.
- the first connection component can (for example, to exchange the electrical signals between the signal processing module and the PLC) be designed to electrically and / or mechanically connect the signal processing module to a connection component (also: second connection component) corresponding to the first connection component.
- a connection component also: second connection component
- the second connection component can be a connector half, for example a socket, a built-in plug or a slot.
- the communication component can be designed to send and / or receive the electrical signals and / or the information signals between the signal processing module and the PLC.
- the communication component can be designed to transmit the electrical signals and / or the information signals between the signal processing module and a control center, for example via the PLC.
- the electrical signals and / or the information signals can be transmitted from the signal processing module and the PLC to the control center.
- the communication component can be designed to send the information signals indicating the functional scope in response to the electrically conductive connection by means of the first connection component, and / or the electrically conductive connection of the signal processing module to the PLC, and / or via the first connection component from the PLC to send the request for the scope of functions received.
- the information signals can also be sent via the first connection component together with the electrical signals, for example by means of a serial data transmission.
- the information signals can be transmitted to the PLC via a (for example separate) electrical conductor, an optical conductor and / or a radio signal.
- the communication component can be designed to send the information signals to the PLC via the first connection component and / or a wireless interface.
- the communication component can comprise a wireless interface (for example a radio interface) and / or a wired interface, preferably to the first connection component and / or to the communication with the PLC.
- the first connection component can be arranged on an edge of the signal processing module and / or can be plugged or plugged together for an electrically conductive connection with a second connection component of a system comprising the PLC.
- the signal processing module can (for example, depending on the scope of functions) be designed to process analog and / or digital electrical signals, preferably electrical signals having logic levels and / or the modulated electrical signals.
- the analog electrical signals can, for example, have a stepless, continuous and / or smooth voltage curve or current curve, where the analog signals have a continuous curve.
- the digital electrical signals can (for example with regard to voltage or current) have edges, one or more discrete levels and / or a stepped profile.
- the logic signal can correspond to a specified signal shape, for example a transistor-transistor logic (TTL).
- TTL transistor-transistor logic
- the digital electrical signals can have discrete Fourier components.
- the modulated electronic signal can comprise a carrier frequency or one or more subcarrier frequencies.
- the functional scope of the signal processing module can correspond to a functional or internal structure of the signal processing module.
- the scope of functions can be determined and / or designed, for example, by programming and / or circuitry.
- the signal processing component can comprise an electrical circuit (for example discrete or integrated).
- the signal processing component can be designed to carry out a function (for example a signal conversion) in accordance with the scope of functions.
- the signal processing component can have a digital signal processor or a microcontroller in order to execute and / or control the functional scope of the signal processing component.
- the signal processing module (for example the signal processing component) can comprise a circuit for galvanic isolation (also: isolation circuit or isolation level) of the electrical signals exchanged between the communication component and the signal processing component.
- a circuit for galvanic isolation also: isolation circuit or isolation level
- an isolating circuit can be provided between a field-side portion of the first connection component (or a field connection of the signal processing module) and the signal processing component (or the communication component).
- the signal processing module can process (for example process, convert and / or map) the electrical signals, which are exchanged between the at least one field device and the PLC, depending on or according to the respective scope of functions.
- the signals exchanged can include incoming and / or outgoing signals.
- an incoming signal can be transmitted from the at least one field device to the signal processing module (preferably via the field-side portion of the first connection component).
- the signal transmitted to the signal processing module can be processed by the signal processing component of the signal processing module according to the scope of functions.
- the processed electrical signal can be transmitted from the signal processing module to the PLC (preferably via a control-side portion of the first connection component).
- the signal processing module and / or the communication components transmit the functional scope to the PLC by means of the information signals, for example so that the PLC can make settings on a port of the PLC that is electrically connected to the second connection component and / or control processes in the automation process that are dependent on the signal processing module (For example, if the signal processing module fails or has an error).
- the signal processing module can send the information signals to the PLC when the signal processing module is connected to the PLC.
- an outgoing signal can be transmitted from the PLC to the signal processing module (preferably via the control-side portion of the first connection component).
- the signal processing module processes the signal according to the functional scope by means of the signal processing component of the signal processing module.
- the processed signal is transmitted from the signal processing module to the at least one field device (preferably via the field-side portion of the first connection component).
- the signal processing module can comprise an energy supply component (or energy component for short).
- the energy supply component can be designed to supply the signal processing module with electrical energy.
- the electrical energy of the energy supply component can for example be provided by an external energy source (ie outside the signal processing module, for example an energy component of the system) and / or by an internal energy source (ie an energy source of the signal processing module).
- the external energy source can, for example, transmit the energy to the energy supply component via the first connection component.
- the internal energy source can be, for example, a storage device for electrical energy, which can optionally be charged from an external energy source, preferably for an uninterruptible power supply.
- the signal processing module can comprise a digital input (Dl), a digital output (DO), an analog input (AI) and / or an analog output (AO), preferably on the field-side portion of the first connection component (or the field connection) .
- the DI can be an input for acquiring and / or processing digital electrical signals.
- the DO can be an output for processing and / or outputting digital electrical signals.
- the AI can be an input for detecting and / or processing analog electrical signals.
- the AO can be an output for processing and / or outputting analog electrical signals.
- the functional scope of the signal processing module can include at least one of the following signal processing operations.
- a first signal processing comprises converting an electrical signal detected by the at least one field device to an electrically conductive connected Dl of the PLC through the first connection component.
- a second signal processing comprises converting an electrical signal detected by the first connection component from a digital DO of the PLC to the at least one field device.
- a third signal processing includes converting an electrical signal detected by the at least one field device to an AI of the PLC that is electrically conductively connected by the first connection component.
- a fourth signal processing includes converting an electrical signal captured by the first connection component from an AO of the PLC to the at least one field device.
- a fifth signal processing includes providing a digital DI to the at least one field device, which is designed to detect the electrical signals of the at least one field device.
- a sixth signal processing includes providing a DO for the at least one field device, which is designed to output the electrical signals to the at least one field device.
- a seventh signal processing includes providing an AI to the at least one field device, which is designed to detect the electrical signals of the at least one field device.
- An eighth signal processing includes providing an AO to the at least one field device, which AO is designed to output the electrical signals to the at least one field device.
- the range of functions can include at least two alternative states of the signal processing of the signal processing module.
- the communication component and / or the processing component can be designed to receive control signals from the PLC via the first connection component.
- the control signals can specify a state of the alternative states.
- the signal processing component can also be designed to accept the predetermined state of the signal processing.
- the two alternative states can be, for example, the provision of a Dl and a DO or the provision of an AI and an AO.
- the PLC can switch between the two alternative states using the control signals, for example.
- control signals can be designed to control the signal processing module.
- the control signals can control a function of the signal processing module depending on the scope of functions.
- the control signals can, for example, activate or deactivate a function depending on the scope of the function.
- the functionality of the signal processing module can be unchangeable.
- the PLC can be designed to detect the functional scope by means of the information signals and to output an error message (for example to the control center) in the event of a functional scope that is unsuitable for a sequence control stored in the PLC.
- the information signals can include at least one of the following identifiers.
- a signal processing module identifier can indicate the signal processing module or (for example, uniquely) identify it.
- a connection component identifier can indicate the first connection component of the signal processing module.
- a connection status identifier can indicate a status of the electrically conductive connection between the signal processing module and the PLC.
- a functional scope identifier can indicate the functional scope.
- An operating state identifier can be an operating state of processing the electrical Signals and / or an operating state of the signal processing module indicated.
- An application identifier can indicate an application (for example, compatible with the signal processing module) of the electrical signals and / or a device type (compatible with the signal processing module, for example) of the at least one field device.
- a signal form identifier can indicate a signal form of the electrical signals (for example between the signal processing module and the at least one field device).
- the signal processing module identifier can clearly indicate or determine the signal processing module.
- each signal processing module can have a serial number, an address or an identifier for its serial interface.
- connection component identifier can include, for example, an identifier, a technical structure and / or a function of the first connection component.
- the functional scope identifier can include, for example, an identifier for describing the functional scope and / or an identifier for the selected functional scope.
- the operating state identifier can, for example, indicate an identifier for a function of one of the components of the signal processing module and / or an identifier for an error (for example an error code) in the signal processing module.
- the first connection component and / or the communication component and / or the signal processing component can (for example, depending on the scope of functions) for unidirectional or bidirectional communication of the electrical signals, preferably with the PLC and / or the at least one field device.
- the first connection component and / or the communication component and / or the signal processing component can be used for serial communication tion of the electrical signals and / or the information signals can be formed with the PLC.
- both the electrical signals and the information signals can be exchanged with the PLC using the same communication component and / or the same serial interfaces.
- the communication component can comprise a (for example separate or redundant) wireless interface for communication of the information signals.
- the communication component and / or the signal processing component can be designed for periodic or continuous detection (for example receiving) and / or periodic or continuous processing and / or periodic or continuous transmission of the electrical signals.
- the signal processing module can be designed for periodic or continuous acquisition of the electrical signals on the field-side portion of the first connection component.
- the periodic or continuous detection can enable monitoring of the at least one field device.
- Periodic or continuous recording can be technically referred to as monitoring.
- a time profile of the electrical signals or one of the electrical signals can be recorded.
- a second aspect relates to a system for exchanging electrical signals between at least one field device and a programmable logic controller (PLC).
- the system includes the PLC, which provides at least one port for exchanging the electrical signals.
- the system comprises at least two second connection components which are electrically connected to the at least one port of the PLC and which are each designed to electrically connect the PLC to a signal processing module according to the first aspect via its first connection component.
- the PLC is designed to receive information signals from the signal processing modules and to transmit the electrical signals to the respective signal processing module via the at least two second connection components to exchange a functional scope of the respective signal processing module, the information signals from the respective signal processing module indicating the functional scope of the respective signal processing module.
- Every second connection component can comprise a slot.
- the electrically conductive connection can include inserting the first connection component (for example a contact strip) into the second connection component.
- the system can furthermore include at least two of the signal processing modules, the first connection components of which are each electrically connected to a different one of the second connection components.
- the signal processing modules can each be designed to send the information signal to the PLC and to process the electrical signals exchanged between the at least one field device and the PLC according to the functional scope of the respective signal processing module.
- the PLC can also be designed to send control signals via the second connection component for controlling the respective signal processing module.
- the scope of functions can include at least two alternative states of the processing of the electrical signals (i.e. at least two alternative states of the signal processing of the signal processing module).
- the control signals can predetermine a state of the alternative states.
- the information signals can include or indicate an identifier of the respective signal processing module.
- each port can be a serial port.
- the information signals can indicate an identifier of the respective signal processing module.
- the at least one port provided by the PLC can comprise a serial port connected electrically with the at least two second connection components for exchanging the electrical signals.
- the PLC can also be designed to use the electrical signals to exchange the at least two signal processing modules (100) via the serial port, the at least two signal processing modules being differentiated and / or addressed on the basis of their respective identification.
- the electrical signals between the PLC and the at least two signal processing modules can be exchanged via the same serial port.
- the exchange of the electrical signals can include time frames (also in technical terms: frames), for example, it can be divided into time frames.
- the time frames can each include the identifier of the respective signal processing module, for example as the sender for a transmission from the signal processing module to the PLC or as a receiver for a transmission from the PLC to the signal processing module.
- the PLC can provide at least two ports for transmitting the electrical signals.
- Each of the ports can be uniquely connected to one of the at least two second connection components in an electrically conductive manner.
- each of the at least two ports can be a serial port.
- one port of the PLC can be connected in an electrically conductive manner to a different one of the at least two second connection components.
- the PLC can also be designed to configure the port electrically conductively connected to the respective second connection component in response to the information signals from the at least two signal processing modules in accordance with the scope of functions specified via this port.
- the PLC can also include a connection to a higher-level control center.
- the PLC can be designed to send the electrical signals, the information signals and / or signals derived therefrom to the higher-level control center.
- the PLC can be designed to receive instructions for controlling the processing of the electrical signals from the higher-level control center and to send control signals to one of the signal processing modules in accordance with the instructions.
- the PLC can be designed to receive instructions for controlling the at least one field device from the higher-level control center and to send electrical signals to the at least one field device in accordance with the instruction.
- the PLC can also be designed to determine a discrepancy between a functional scope or an identifier assigned to one of the second connection components and a functional scope or an identifier received via this second connection component in the information signals .
- the PLC can also be designed to output an error message to the higher-level control center, for example in response to the discrepancy detected.
- the at least one port of the PLC can be connected in an electrically conductive manner to an interface of a microprocessor of the PLC.
- the microprocessor can be designed for example to execute a program code or a Com puterprogramm.
- the microprocessor can have at least one computing unit.
- the at least one port of the PLC can be connected in an electrically conductive manner to the control-side portion of the second connection component via back wiring (for example in a routing level of the system).
- the back-wiring can include an electrical connection between the ports of the PLC and the second connection components, which cannot be changed by control signals from the PLC.
- the second aspect can further comprise any feature disclosed in the context of the signal processing module according to the first aspect, or a feature corresponding to the system.
- the electrical signals detected by the at least one field device can also be referred to as input signals (E signals).
- the at least one field device (for example from the signal processing module)
- the electrical signals output are also referred to as output signals (A signals).
- the field-side electrical signals (for example the signals exchanged between the signal processing module and the at least one field device) are referred to as I / O signals.
- the PLC can be implemented by a controller (for example with a microcontroller and / or a microprocessor).
- An exemplary embodiment of the system for example its PLC, can communicate with a further (for example remote) exemplary embodiment of the system or an input / output rack (I / O rack).
- the respective PLCs of two or more exemplary embodiments of the system can communicate over a digital bus or network.
- the port can be an input and / or output of the PLC which is designed to receive or send the exchanged electrical signals.
- the system can process the electrical signals by means of the signal processing module and thus forward them between the field device and a higher-level control center.
- the signal processing module can forward and process the electrical signal between the field device and the port of the PLC.
- the signal processing module can process the electrical signal as a function of the functional scope and thus make it available to the port and / or the field device.
- 1 shows a schematic block diagram of a signal processing module for processing electrical signals from a field device for a PLC according to a first exemplary embodiment
- 2 shows a schematic block diagram of a signal processing module for processing electrical signals exchanged between the field device and the PLC with an energy store according to a second embodiment
- 3 shows a schematic block diagram of a system for exchanging electrical signals between field device and PLC according to a first exemplary embodiment
- FIG. 4 shows a schematic block diagram of a system for exchanging electrical signals between field device and PLC according to a second exemplary embodiment.
- FIG. 1 shows a first exemplary embodiment of a signal processing module (in short: module), generally designated by reference numeral 100, for processing electrical signals exchanged between a field device 120 and a programmable logic controller (PLC) 130.
- the signal processing module 100 has a first connection component 102 for the electrically conductive connection of the signal processing module 100 to the PLC 130.
- the module 100 comprises a communication component 104, which is designed to send information signals to the PLC 130 via the first connection component 102.
- a signal processing component 106 of the module 100 is designed to process the at least one electrical signal in accordance with a functional scope of the signal processing module 100.
- the signal processing component 106 is connected to the communication component 104 in an electrically conductive manner.
- the signal processing component 106 preferably has a separating plane 106.1 and a controller 106.2, the separating plane 106.1 being galvanic isolation, for example by means of an optocoupler, in the signal path between see field device 120 and PLC 130 (for example between the communication component 104 and the signal processing in the signal processing component 106).
- a controller 106.2 (for example a signal processor) of the signal processing component 106 is designed to process the electrical signal in accordance with the functional scope.
- the signal processing module 100 has a connection 102.2 and / or 102.2 ′ (for example an input or an output) to the field device 120.
- the connection 102.2 and / or 102.2 ' connects the signal processing component 106 in an electrically conductive manner to the field device 120.
- the connection 102.2 and / or 102.2' can depend on the scope of functions and / or be adapted to the field device 120, for example with regard to a signal shape and / or a connector half.
- the connection can be a field-side portion 102.2 of the first connection component 102 (for example part of a common connector half of the module 100) together with a control-side portion 102.1 of the first connection component 102.
- the signal processing module 100 can comprise a separate field connection 102.2 ′.
- the field device 120 can be connected directly to the module 100 via the separate field connection 102.2 ′.
- the functional scope of the first exemplary embodiment of the module 100 shown schematically in FIG. 1 comprises a signal input (for short: input).
- the control of the signal processing component can include an input circuit which, according to the scope of functions, detects the input signal of the field device, for example an analog-to-digital converter for an analog input (AI) to the field device 120.
- the signal path between field device 120 and PLC 130 can include connection 102.2 and / or 102.2 ′ as a signal output (for short: output) to field device 120.
- the scope of functions includes an output, for example an analog output (AO).
- the first exemplary embodiment and the variant can be combined for bidirectional communication (ie for bidirectional exchange of the signals).
- the part of the signal path between the communication component 104 and the PLC 130 have a serial data transmission.
- the communication component 104 and / or the signal processing component 106 is designed to send the information signals during the electrically conductive connection of the first connection component 102 to the PLC 130.
- the signal processing component 106 preferably controls the communication component 104 to send the information signals.
- the signal processing module 100 has, for supplying at least the signal processing component 106, an energy component 108 which comprises a controller 108.1 and a parting plane 108.2.
- the controller 108.1 is designed to provide at least the signal processing component 106 with an electrical supply energy for operation.
- the separating plane 108.2 can provide galvanic separation, for example by means of a transformer, in the power path between an external energy source (or the controller 108.1) and at least the signal processing component 106.
- the energy component 108 is supplied with energy by an energy component 312 which is external to the signal processing module 100.
- the energy component 312 can be implemented in the aforementioned system.
- the energy component 312 can be a switched-mode power supply.
- FIG. 1 shows the direction of the exchange of the electrical signals and the processing (for example, conversion of the electrical signals) that are transmitted from the field device 120 to the PLC 130, is exemplary.
- Unidirectional communication can exist between the communication component 104 and the PLC 130, for example.
- the reverse direction of the exchange of electrical signals or bidirectional communication can be implemented.
- FIG. 2 shows schematically a second exemplary embodiment of the module 100. The second exemplary embodiment can be a further development of the first exemplary embodiment shown schematically in FIG. 1.
- the energy component 108 can furthermore comprise an energy store 108.3.
- the energy store 108.3 is designed to supply at least the signal processing component 106 with the supply energy.
- a bidirectional connection can exist between the communication component 104 and the PLC 130.
- the bidirectional connection can use serial communication, for example an industrial transmission protocol.
- the signal processing module 100 can be designed to receive control signals from the PLC 130 via the first connection component 102.
- the signal processing module 100 can be designed as an interface for transmitting the electrical signals between the at least one field device 120 and the controls (i.e. the PLC) 130.
- the signal processing module 100 can process standard signals from the PLC 130 and / or from the field device 120 (for example a sensor) (for example, convert them into one another).
- the bidirectional connection can meet the requirements of an application with a safety integrity level (technically also “safety integrity level” or SIL).
- SIL safety integrity level
- the communication component 104 can comprise a wide variety of mechanisms for securing the connection or the communication.
- the range of functions can include at least one of the following functions or applications: Analog Input (AI), Analog Output (AO), Digital Input (Dl), Digital output (DO), temperature measurements, vibration measurement methods, SA-FETY relays, relays or feed-through.
- AI Analog Input
- AO Analog Output
- Dl Digital Input
- DO Digital output
- temperature measurements vibration measurement methods
- SA-FETY relays relays or feed-through.
- FIG. 3 shows a first exemplary embodiment of a system, generally designated by reference numeral 300, for exchanging the electrical signals between the field devices 120 and the PLC 130, and optionally for forwarding the electrical signals to a higher-level control center 330.
- the system 300 includes the PLC 130, which provides at least one port 310 for exchanging the signals.
- the system 300 comprises a second connection component 306, which is each electrically connected to the port 310 and is designed to connect a signal processing module 100 via a first connection component of the signal processing module 100 in an electrically conductive manner.
- the signal processing module 100 is designed to process the electrical signals exchanged between the field devices 120 and the PLC 130 in accordance with a functional scope of the respective signal processing module 100.
- the signal processing module 100 is designed to transmit an information signal to the PLC 130 via the first connection component 102 and the second connection component 306.
- the PLC 130 is designed to, in response to the information signal, configure the port 310, which is electrically conductively connected to the respective second connection component 306, in accordance with the scope of functions.
- the PLC 130 is designed to control the signal processing module 100 by means of control signals.
- the system 300 has a field connection 304 which is designed to electrically conductively connect the at least one field device 120, preferably via the respective second connection component 306, to the respective signal processing module 100.
- a module-side field connection 103 for the respective field device 120 can be provided on the respective signal processing module 100.
- the field connection 304 (for example the input or output to the field device 120) and the second connection component 306 are preferably arranged in a routing level 302 of the system 300.
- the field-side portion 102.2 of the first connection component 102 or the field-side portion 306.2 of the second connection component 306 can be electrically conductively connected to the field connection 304 of the system 300 to the field device 120 via the routing level 302 (preferably back wiring).
- the system 300 has a control level 308, which has the PLC 130 and optionally an energy component 312.
- the energy component is designed to provide supply energy to at least the PLC 130 and / or the signal processing module 100.
- the system 300 has a communication connection between the PLC 130 and an external PLC 320, which can access the PLC 130 in a controlling manner and / or which is controlled by the PLC 130 and / or which is redundant (for example for a failure of the PLC 130) is provided.
- the signal processing module 100 can transmit a unique identifier to the PLC 130, preferably in the information signals. This identifier can enable the PLC 130 to detect whether a signal processing module 100 and / or which signal processing module 100 has been plugged into the respective second connection component 306 and / or which range of functions the respective signal processing module 100 has.
- the PLC 130 can be designed to output the functional scope specified in the information signals as information, for example on a local screen on the PLC 130 or via a web page generated by the PLC 130 that can be called up via a network connection.
- the PLC 130 can transmit the specified scope of functions to the control center 330, so that the control center 330 reports this when controlling a process.
- the control center 330 reports this when controlling a process.
- the signal processing module 100 can be taken into account as a function of its functional scope when determining a control program for the PLC 130.
- the determination of the control program can be carried out automatically and / or manually by means of the control center 330.
- the system 300 and / or the process carried out by the system 300 can be optimized.
- the identifier can be transmitted by means of a serial electrical signal.
- the transmission can also take place via a wired communication interface and / or via a wireless communication interface.
- the identifier can be designed to transmit at least the functional scope and / or an identification feature of the signal processing module 100 to the PLC 130, the transmission taking place when the first connection component is connected to the second connection component.
- the identifier can be an identifier of the port 310, the first connection component 102, the second connection component 306, an identifier of the functional scope (for example, for the function as AI, AO, Dl or DO), an identifier for the configuration of the signal processing module 100 (for example for the subsequent adaptation of the configuration), and / or an identification feature of a malfunction or functional restriction of the signal processing module 100.
- the identifier can in particular simplify operation and / or commissioning, since the system 300 or the PLC 130 provides information from the signal processing module 100. Furthermore, the signal processing module 100 can transmit a functional status in connection with the processing of the electrical signal, for example a so-called “online” status. Alternatively or in addition, the system 300 or the PLC 130 can configure an energy management of the energy component 312 on the basis of the identifier.
- the identifier can include an identification feature for the energy consumption. Furthermore, such an energy curve can be determined over a period of time. Furthermore, maintenance of the signal processing module 100, the system 300 and / or the PLC 130 can be planned in an advantageous manner by means of the identifier.
- a system 300 for forwarding electrical signals between field devices 120 and a higher-level control center 330 can be adapted and specifically developed in an advantageous manner.
- a configuration and / or calibration of the signal processing module 100 can be performed and / or adapted by the control room 330 and / or PLC 130.
- an operating status of the signal processing module 100 can be recorded by the control room 330 and / or the PLC 130.
- the operating status can include the operating hours of the signal processing module 100, error monitoring of the signal processing module 100, monitoring of the electrical signals, monitoring of the maintenance intervals of the signal processing module 100 and / or predictive maintenance of the signal processing module 100.
- the field devices 120 can be controlled and / or configured (for example by processing the electrical signals in the signal processing module 100 and / or by the PLC 130) using signals from an industrial field bus (for example signals from a “Highway Addressable Remote Transducer” or HART).
- an industrial field bus for example signals from a “Highway Addressable Remote Transducer” or HART.
- FIG. 3 shows a first exemplary embodiment of the system 300 in which the back-wiring of the routing level 302 includes a one-to-one assignment between ports 310 and second connection components 306, FIG Exchange via a common serial bus determines which of the signal processing modules 100 is addressed.
- exemplary embodiments can provide a signal processing module that can meet the various requirements of the customer in the field of automation of processes.
- a configuration effort and / or a maintenance effort of a system in the area of the automation of processes can be reduced.
- First connection component preferably contact strip 102
- PLC Programmable logic controller
- Second connection component preferably slot 306
- Control center also: control room
- Connection to the control center preferably network connection 332
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- General Physics & Mathematics (AREA)
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- Programmable Controllers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU101865A LU101865B1 (de) | 2020-06-17 | 2020-06-17 | Technik zum Verarbeiten und Austauschen von Signalen zwischen Feldgerät und Steuerung |
| PCT/EP2021/060499 WO2021254677A1 (de) | 2020-06-17 | 2021-04-22 | Technik zum verarbeiten und austauschen von signalen zwischen feldgerät und steuerung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4168863A1 true EP4168863A1 (de) | 2023-04-26 |
Family
ID=71895131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21719662.5A Pending EP4168863A1 (de) | 2020-06-17 | 2021-04-22 | Technik zum verarbeiten und austauschen von signalen zwischen feldgerät und steuerung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230297059A1 (de) |
| EP (1) | EP4168863A1 (de) |
| CN (1) | CN115803691A (de) |
| LU (1) | LU101865B1 (de) |
| WO (1) | WO2021254677A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022123352A1 (de) * | 2022-09-13 | 2024-03-14 | Turck Holding Gmbh | Signalübertragungssystem zur Übertragung einer Hauptprozessvariablen und weiteren Daten zwischen einem Feldgerät und einer übergeordneten Einheit sowie ein entsprechendes Verfahren |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068778A (en) * | 1988-11-28 | 1991-11-26 | Reliance Electric Industrial Company | Industrial control system device |
| JP2002527803A (ja) * | 1998-10-13 | 2002-08-27 | サイアントロニクス・インコーポレーテッド | 制御プログラムを生成するためのシステムおよび方法 |
| US6738441B1 (en) * | 2000-07-05 | 2004-05-18 | Schneider Automation Inc. | Method and device for filtering input signals |
| US8086664B2 (en) * | 2001-09-24 | 2011-12-27 | Siemens Industry, Inc. | Method and apparatus for programming programmable controllers and generating configuration data from a centralized server |
| EP1685493B1 (de) * | 2003-11-17 | 2013-01-02 | Rockwell Automation Technologies, Inc. | Verteiltes modulares eingangs-/ausgangssystem mit drahtloser backplane-erweiterungsvorrichtung |
| DE102004039886A1 (de) * | 2004-08-17 | 2006-03-09 | Endress + Hauser Flowtec Ag | Verfahren zum Betreiben eines Feldgerätes der Automatisierungstechnik |
| EP2225862B1 (de) * | 2007-12-28 | 2018-11-07 | Spectrum Controls, Inc. | Mikrosteuerung mit fsk-modem |
| US20100268850A1 (en) * | 2009-04-17 | 2010-10-21 | Burton Lambert J | Modular I/O System With Automated Commissioning |
| KR101481296B1 (ko) * | 2013-07-18 | 2015-01-09 | 엘에스산전 주식회사 | 원격 단말 장치 및 그의 동작 방법 |
| WO2015187687A1 (en) * | 2014-06-02 | 2015-12-10 | Phoenix Contact Development and Manufacturing, Inc. | Universal i/o signal interposer system |
| EP3128383B1 (de) * | 2015-08-03 | 2020-06-03 | Schneider Electric Industries SAS | Feldgerät |
| EP3339990A1 (de) * | 2016-12-20 | 2018-06-27 | Schneider Electric Industries SAS | Dynamisch konfigurierbares feldgerät |
| US10819721B1 (en) * | 2017-02-21 | 2020-10-27 | National Technology & Engineering Solutions Of Sandia, Llc | Systems and methods for monitoring traffic on industrial control and building automation system networks |
| US10198939B1 (en) * | 2017-10-02 | 2019-02-05 | Siemens Aktiengesellschaft | Process automation device |
| US10447078B2 (en) * | 2017-10-02 | 2019-10-15 | Fisher-Rosemount Systems, Inc. | Smart function block for integration of PLCS into a control system and methods for the same |
| US10426055B2 (en) * | 2017-10-02 | 2019-09-24 | Fisher-Rosemount Systems, Inc. | In-place retrofit of PLC control systems |
| US11138137B2 (en) * | 2020-01-20 | 2021-10-05 | Neles Usa Inc. | Self-learning apparatus for connecting inputs and outputs of a programmable logic controller to a field device |
-
2020
- 2020-06-17 LU LU101865A patent/LU101865B1/de active IP Right Grant
-
2021
- 2021-04-22 CN CN202180043278.5A patent/CN115803691A/zh active Pending
- 2021-04-22 US US18/010,505 patent/US20230297059A1/en active Pending
- 2021-04-22 WO PCT/EP2021/060499 patent/WO2021254677A1/de not_active Ceased
- 2021-04-22 EP EP21719662.5A patent/EP4168863A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021254677A1 (de) | 2021-12-23 |
| US20230297059A1 (en) | 2023-09-21 |
| CN115803691A (zh) | 2023-03-14 |
| LU101865B1 (de) | 2021-12-17 |
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