TH8314B - Secret connection for process control computers - Google Patents

Abstract

Secret connection for a smart front-end communication system Computer mount Quickly control redundant processes, a number of tasks on a computer network, a secret connection in a computer, quickly control redundant processes for each job. It contains multiple ports for storing dynamic data related to physical processes and for transferring them to the front-end computer. Communicate with computer networks Several portfolios also contain a mailbox section. For storing messages sent between the front-end computer and the control computer. Fast redundant processes, their tasks Secret connections also consist of a circuit. Protection, which controls the ability of the front-end computer to write information into Specific memory locations in multiple memory locations

Claims (2)

1. A method for enabling transparent data transfers between control computers. Loop of repetition quickly And at least one front-end computer capable of communicating with the network Computer network That consists of steps of Providing a memory port with at least one internal port for communication with the computer. The router controls the process. And at least one external port for communicating with the computer Such front end Giving multiple memory variables as such For storing the collected information From the computer controlling the process periodically In the memory variable section Many such positions The mailbox section in the memory of many such port. For storing messages sent from The front-end computer to the computer controls the process, and Enabling multiple memory ports to be accessible from an external port. Such during the preset part of the operation clock for the control computer The process only Makes one or more data words stored in that variable part of the unit. Many of these memories may be transferred to the memory associated with the front end computer. Or, one or more words may be transferred from the front-end computer to the mailbox section. Such memory portions of the aforementioned memory modules without interference with the operation of the computer. The PC controls that process 2. The method according to claim 1 that also includes the write protection process. To the preset positions in the memory of multiple ports, such as The computer controls the process from such external ports. 3. The procedure in claim 2, with such precautionary steps, limits the ability to perform the duties. Write access from that external port only to the aforementioned mailbox portions of many of the aforementioned portfolios. 4. Method according to claim 3 that contains all the contents of such multiple memory portlets. Was read from the outside. 5. Method according to claim 1 with at least one such message was sent from the computer. The front-end PC causes a change in the values used by the control computer program. The aforementioned process 6. Method for claim 1 that also includes the procedure of opening through communication devices. More selective To access multiple of these from the external port in During the aforementioned preset parts of the watch mark, it is performed. 7. Hacking joint for enabling transparent transfer of data between computers. Control repetitive processes in a timely manner And at least one front-end computer that can Communicate with computer networks The joint connection consists of Multiple port data memory That has an internal port that is connected to the Nus structure of the computer. The router controls the process. And at least one external port for communicating with the computer The front end, memory, many of the above portions are variable. For storing information collected from The computer controls the process as And the mailbox section For storing messages from The front-end computer to the computer controls the process External access control devices Connected to the clock signal associated with the operation Of the computer controls the process For opening at least one address word in Memory of such data can be accessed from the said external port during the specified segment. Advance of the cycles for such clock signals and the protective equipment Connected to the aforementioned data memory port For limited entry To write that allows from that external port to a predefined address position in the data memory. Many of the above positions 8. Shuffled joint claim 7 with restricted pre-assigned address. It is in the aforementioned mailbox section of the aforementioned data memory 9. A shuffling connection according to claim 7 that also includes a lifting timer. Disconnect the aforementioned external port at the end of the aforementioned pre-defined portion of the said clock cycle 1 0. Shuffled joint of claim 7 with such external access control device. It consists of a signaling device for signaling error in writing to The external port when the security device denies write access to the front computer 1. 1. The subjunctive connection according to claim 7 with such protective equipment consists of: Programmable logic rode connected to the aforementioned data memory bus structure 1. 2. Shuffled connections for enabling transparent data transfers between computers. Control the redundant processes quickly. And at least one front-end computer at Able to communicate with computer networks This connection consists of a data memory with at least one internal port that is used to communicate with the process control computer. At least one external port is used to communicate with the front-end computer. For storing information collected from the control computer periodically and the mailbox section for storing messages from the front-end computer to the control computer. Such processes and access control devices for open Many of the above memory portals are being accessed low. The position that can be obtained from the said external pipe only during Preset part of the watch face Do so For the computer to control the process, thus making at least one data word. Words stored in that variable portion of the said port of memory may be transferred to the unit. Memory associated with the computer in the front. Or one or more text words may be taken. Transferred from the aforementioned computer to the aforementioned mailbox sections of the memory. Without interfering with the operation of the computer controlling the said process