Industrial automation

The computers at Hoogovens have a large development.

This was the beginning of the computer age at Hoogovens:

This Programmable Data Computer PDP-5 is the first computer of the brand Digital Equipment Corporation (DEC) which is installed in the Netherlands in 1965. The order is done at DEC in Cologne and commissioning, from Munich. This first process computer was in blast furnaces in the oxygen steelmaking plant (1) using OXY-2 did not exist.

PDP-5 Computer

Where was this computer:   Process Computer OXY-1
What should he do:

Calculations of the spectral lines of an arc of a steel sample.   These spectral lines are typical of the impurities in the steel sample.
When he is taken into use:

This Programmable Data Computer (PDP) in 1965 as the first process computer in the Netherlands in April 1965 put into operation
Specifications of the PDP-5:
• Memory 4,096 words of 12 bits.
• Teletype speed ​​up to 20 Characters per second .
Price: $ 27,000 = is: 135,000, = guilders

 



Programmable Data Processor PDP8s This is the cheaper of the PDP8, the successor to the computers of the brand PDP5 Digital Equipment Corporation (DEC). This computer was made in oxygen steelmaking plant-2 and had the temperature heat balance calculations for the converters in OXY-2. There were two of these computers, for a converter-21, and a pre-converter 22. The temperature calculation was made of the amount of pig iron and additives, where scrap as a coolant to and ore was added. PDP8s The system was commissioned in early 1968 by Jak, Tuk and Oostingh led by Broekhuis (RL).

PDP8s Computer

 

Where was this computer:   • Process Computer OXY-2
What should he do:   • Perform calculations on the heat balance of the converter.   • There was a pre-converter 21 and a pre-converter 22.

 

When he is taken into use:   This Programmable Data Computer (PDP8s) is the cheaper version of the PDP8 in 1968 and was put into use in oxygen steelmaking plant-2.
Specifications of PDP-8s:   • Memory 8,000 words of 12 bits. (8 kByte).   • Speed ​​10 Characters per second ASC2 code.

 

Automatic loading of a program with a paper tape took 30 minutes.

This Programmable Data Processor PDP8e is the improved successor to the computers of the brand PDP8s Digital Equipment Corporation (DEC) provided with oxygen steelmaking plant-2 was used. The program was a paper tape reader be read.

PDP8e Computer

Where was this computer:
• Process Computer OXY-2
What should he do:
• Calculations of the spectral lines. Spectral lines provide information on all elements in the steel sample.

 

When he is taken into use:
• The Programmable Data Computer (PDP8e) is the improved successor of the PDP8s process computers in oxygen steelmaking plant-2 was used.
Specifications PDP8e:
• Memory 32,000 (32kB) words of 12 bits.

 

• Rate 100 Characters per second ASC2 code.
• In 1980 there were 15 computers PDP8e at Hoogovens in use.

 



PDP11

PDP11 Computer

Where was the computer used, inter alia:  Rod and Wire Rolling Mill
What should he do:   Bat lengths calculations for the Waltz of the Bat Bar and Wire Rolling Mill.
When he is taken into use:   This Programmable Data Computer (PDP11) is the 16 bit version of the PDP8s in 1970 and was put into use in rod and wire mill.

 

Specificaties van de PDP-8s:

• De PDP11-34-serie (16 bits) met een nieuwe Unibusstructuur.

• Snelheid:

• Geheugen:

• Opslag capaciteit:


 


 

The Teletype was used to introduce programs for Programmable Data Processor PDP8. The computer could communicate with the control panel of the PDP 8 or the Teletype, a U.S. telex machine, the German counterpart of the telex which was used in telephony. With the same Teletype KSR33 could make a copy of the program on a roll paper punch tape, where the information in the form of holes in the punched tape was stored. That same band you could also punch through the paper tape reader of the Teletype in the computer reading, if the reader had read the paper tape well. The first program had a length of 30 meters punch tape paper, woe to you if you damaged bones, it had to be stuck with cello tape and the holes are bijgeprikt handponser again! Reading the paper tape lasted at least half an hour, time enough for a cup of coffee. If upon return the checksum of all holes was not right, then the game could repeat itself. You understand that this development was an adventure, "stress" we knew not, was it exciting.

Teletype

Where was he used:

The Process Computer.

What should he do: Program input.   When he is taken into use: In 1968 the PDP8 computers at Oxy-2.   Specifications of the Teletype: Speed ​​10 Characters per second ASC2 code.   The program read by a punched tape lasted 30 minutes.

One Response to Industrial automation

  1. S. Claessen says:

    leuke info! wij hebben in onze collectie een pdp8/f en diverse pdp11’s in redelijke staat van werking. hebben jullie nog documentatie of data bij de machines?

    oh en het is niet ASC2, maar ascii, met dubbel i. dat is de defacto standaard geworden in 8bits seriele data

    met vriendelijke groet,

    Simon Claessen
    curator
    computermuseum hack42
    Arnhem

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