Procedure to prevent the alteration Registration of Data Control of Slave Computers, to be consulted by the Master Computer Memory

摘要

A procedure to prevent a Master Computer Data Acquisition, Consult a Slave Computer process control can alter the State of the memory and the condition of danger in the process or in Control of it.A part of the memory of every Slave Computer Process Control (64, 66, 68, 70, 72) is separated into a buffer memory, which is accessible for both the Slave Computer Process Control as the Master Computer Data Acquisition (58).