NetNews Usenet Archive 1992 #20

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Internet Message Format | 1992-09-09 | 6.2 KB

Path: sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!CS.FELK.CVUT.CS!jandol From: jandol@CS.FELK.CVUT.CS Newsgroups: comp.protocols.tcp-ip.ibmpc Subject: ka9q-nos Message-ID: <0096068B.C508AFA0.23541@cs.felk.cvut.cs> Date: 10 Sep 92 11:11:25 GMT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The Internet Lines: 106 X-Unparsable-Date: Thu, 10 Sep 1992 12:19:48 CET My name is Jan Dolejs and I live in Prague in Czechoslovakia. At moment I'm working for Czechoslovak firm called ZPA Cakovice, a producer of control and computer equipment. One of their products is a system named TELEVEL, which was designed as a computer interface to the industrial(manufacturing) environment. The aim of this project is to connect the TELEVEL system to an ACA computer (Advanced Computers Application Inc.,Newton, Pa.,USA). ACA was chosen by ZPA Cakovice as a replacement for their own minicomputer ADT 4500 which they also manufactured (this was copy of HP's HP-1000). The firm plans to base all its future projects, including software, on ACA and TELEVEL. The ACA/32000 computers will be linked together by an ETHERNET using TCP/IP protocol. X display stations (XDS) from VISUAL Technology will be used for monitoring and servicing purposes and for viewing the technological environment in a graphic form. +-----------+ +-----+ +-----+ +-----------+ ! ACA/32000 ! ! XDS ! ! XDS ! ... ! ACA/32000 ! .... ! ! +--+--+ +--+--+ ! ! +-----+-----+ ! ! +-----+-----+ ! ! ! ! ! ! ! ETHERNET TCP/IP ! ------+--------------+----+----+-----------------+-------------- ! ! +---------+---------+ ! PC-AT386SX ! ! 1 MB RAM ! ! ! +---------+---------+ ! +------------+-------------+ ! T E L E V E L ! +--------------------------+ ! .............. ! ! ! Technological (Manufacturing) Environment The TELEVEL system will be connected to a PC-AT386SX through a special interface card and the PC will use a WD8003E or NE2000 netcard on the ETHERNET side. The diskless PC won't be equipped with a keyboard nor a monitor. SW will reside in a special boot card equipped with 640kB of EPROM memory. My role in this project is to develop the SW for the PC-AT386SX. I decided to use the NET program (NOS version) and the corresponding packet driver (Clarkson) for WD8003E or NE2000. From January to May 1992 I studied the source code and tested the version of NET.EXE (18.12.1991) program including the packet driver on my ETHERNET network configured in the folowing way: My son's PC-AT286, my PC-AT386SX, VISUAL's XDS equipped with Telnet protocol and an ACA/32000 computer. At the moment I have modification of the NET program to suit my needs and I plan to write new packet driver for TELEVEL. In May 1992 I maked a work version, equipment TELEVEL is simulated with PC AT286 and for connection I used a serial line between TELEVEL and PC-Gateway. I use this version for dynamical debugging and I will finally substitute Packet driver TELEVEL for Packet driver for Slip8250. +------------------------------------------+ ! PC-AT386 ! ! ! ! Bootp ! Remote ! Telnet(ga ! Application! +-------------+ ! server ! exit ! teway), ! for debug ! ! VISUAL XDS ! for ! ! reboot ! ping,.... ! ! !Telnet(sysop)! debug, +--------+--------+-----------+------------+ +------+------+ trace ! ! ! ! NOS ! ! +------------------+-----------------------+ ! ! ! ! ! ! Ethernet ! --------------------+------------------------------------+--------- ! +----------------+ ! ! Serial line ! ! ! ! +------------------+----+-+-------------+----+ +---+-----------+ ! Pktdrvr NE1000 ! ! Pktdrvr Slip8250 ! !PktdrvrSlip8250! +------------------v----+ +---------------^--+ ! + simple ! ! NOS ! ! ! ! ! ! (internal Watch +--->--+ ! ! ! simulation ! ! dog like G1EMM) ! ! ! ! ! ! Tcp port Udp port! ! program ! +-------------------------v---------------^--+ ! ! ! Bootp ! Remote ! Echo ! Telnet ! ! ! ! ! ! client! server ! serv ! listener ! ! ! ! PC-AT286 ! ! ! ! +--------------+ ! ! +---------------+ ! ! ! !mbox ! mbox! ! ! ! +--------------+ ^ ! ! !Sysop! Gateway! ! ! ! +----------+---+ ! ! ! ! ! ! ! PC-AT286(PC-Gateway) +--->--+ ! ! This PC AT has no monitor, ! ! no keyboard, no harddisk. ! ! The floppy disk is only for boot. ! +--------------------------------------------+ I would like to ask if you could put me in touch with someone who is working on similar problems and who would be willing to discuss these isuess with me. Thank you for your kind attention. My address: Jan Dolejs Delnicka 45 17000 Praha 7 Czechoslovakia E-mail on Internet: jandol@cs.felk.cvut.cs(147.32.14.1) jandol@vax.felk.cvut.cs(147.32.14.2)