console communication
1.The main goal of XVM is to form a virtual machine and manage the tasks and implement the communication . The main components include Environment Class, Daemon Class, Console Class, Communication Management Class and Message Management Class.
2.In this paper the recent application cases of DCS based PLC are introduced, the implementation of PID and other control algorithms, CRT console and communication during process control with PLC are de scribed. Furthermore, EIC comhination is also discussed from the point -of-view of developing.
3.?n this paper, the SSC ion beam diagnostic system on the console of HIRFL in our institute is presented. We can transfer information between console and diagnostic system via DECnet communication. The central computer for HIRFL console is VAX?8350, the working computer of diagnostic system is changed from IBM PC/XT to COMPAQ 486, and the operating program is rewritten from FORTRAN to C.
