摘要:
In a programmable controller of the type including a microprocessor having output address terminals, output address lines extending to external addressable devices, input/output bi-directional data terminals and means for applying a binary status code made up of binary signals on the data terminals at a preselected time during a cycle of the microprocessor and indicative of the type of machine cycle to be processed by the microprocessor there is provided a system for energizing a hardwired logic circuit in response to a status code and logic on said address lines.
摘要:
A programmable controller includes a microprocessor which operates in response to machine instructions stored in a read-only memory. A control program comprised of programmable controller-type instructions is stored in a random access memory. These are executed by translating their operation codes into the starting addresses of corresponding sets of machine instructions. In addition, one or more "universal instructions" may be contained in the control program, and when these are read from the random-access memory, they are translated to enable the microprocessor to execute a user defined set of microprocessor machine instructions. These user defined machine instructions may be stored in a read-only memory or they may be stored in the random access memory with the control program. The programmable controller may thus effectively be programmed in two languages, a programmable controller language and a microprocessor machine language.
摘要:
A programmable logic controller comprises a processor, a PLC operating environment, a device memory, and an app container. The PLC operating environment is configured to execute a controller automation program providing a plurality of skill functions. The device memory comprises a plurality of apps which are configured to perform a discrete set of automation functions using the plurality of skill functions. The app container is logically separate from the PLC operating environment and configured to provide a runtime environment for the apps.
摘要:
There is provided a programmable controller comprising a standard microprocessor having output address terminals and input/output bi-directional data terminals and means for providing a binary code on the data terminals indicative of the status of the machine cycle to be processed by the microprocessor. This programmable controller includes a logic decoder means for producing a selected signal in response to logic signals on selected address terminals and in the status binary code of the data terminals. In addition, the programmable controller includes means for programming the HOLD state for the microprocessor. There is also provided an arrangement for expanding the number of interrupt conditions which can affect the INTERRUPT state of the microprocessor in the programmable controller.
摘要:
An industrial control system device that can be utilized for drive control, process control and/or logic control and which is comprised of a unique combination of hardware and software. Use of one or more of the devices in an industrial control system application permits the control system to be partitioned into subsystems which communicate with one another and which operate as self-contained units. Each subsystem can be further subdivided into modules that have distinct operating functions. The software utilized by the control system device separates the required operating functions of the control system into distinct tasks that operate concurrently (multi-tasking) on a priority level basis while sharing system data and control signals. Three programming languages (BASIC, Control Block, Ladder Logic) are employed so that the most appropriate language can be utilized for each task. Processors can be added to the industrial control system to permit the movement of a task from processor to processor (multi-processing) without reprogramming.
摘要:
There is provided a programmable controller comprising a standard microprocessor having output address terminals and input/output bi-directional data terminals and means for providing a binary code on the data terminals indicative of the status of the machine cycle to be processed by the microprocessor. This programmable controller includes a logic decoder means for producing a selected signal in response to logic signals on selected address terminals and in the status binary code of the data terminals. In addition, the programmable controller includes means for programming the HOLD state for the microprocessor. There is also provided an arrangement for expanding the number of interrupt conditions which can affect the INTERRUPT state of the microprocessor in the programmable controller.
摘要:
The invention relates to a real time-capable control system essentially consisting of a software-implemented SPS application that exchanges the output data and input data by means of a field bus connecting module. The SPS application runs on a computer under the control of a non-real time-capable operating system, whereby the full functionality of the non-real-time-capable operating system is maintained. The real time capability makes the field bus connecting module ready for use, and the data are exchanged between the field bus connecting module and the SPS application via the host interface located inside the computer.
摘要:
The invention relates to a real time-capable control system essentially consisting of a software-implemented SPS application that exchanges the output data and input data by means of a field bus connecting module. The SPS application runs on a computer under the control of a non-real time-capable operating system, whereby the full functionality of the non-real-time-capable operating system is maintained. The real time capability makes the field bus connecting module ready for use, and the data are exchanged between the field bus connecting module and the SPS application via the host interface located inside the computer.
摘要:
There is provided a programmable controller comprising a standard microprocessor having output address terminals and input/output bi-directional data terminals and means for providing a binary code on the data terminals indicative of the status of the machine cycle to be processed by the microprocessor. This programmable controller includes a logic decoder means for producing a selected signal in response to logic signals on selected address terminals and in the status binary code of the data terminals. In addition, the programmable controller includes means for programming the HOLD state for the microprocessor. There is also provided an arrangement for expanding the number of interrupt conditions which can affect the INTERRUPT state of the microprocessor in the programmable controller.