Programming a computer control system for materials handling
in a spray shop
Development of a control system for suspension conveyors for materials handling
in a spray shop.
The software was implemented on a control computer based on the Z-80
microprocessor using Pascal and a multitasking operating system.
The network control system was comprised of 35 distributed microprocessors
serially connected to a master computer.
The microprocessors controlled switching points, brakes and electromagnetic
The microprocessors were programmed in Assembler. The master computer was
programmed in Pascal and Assembler.
I wrote the entire plant control logic, which was implemented on the master
The programmes were implemented in concurrent Pascal, using multi-tasking
re-entrant and recursive programming techniques.
I proposed and implemented the idea of continuously displaying plant process
states on the VDU screen.
I introduced the idea of accessing process states while the plant was in
I also proposed an automatic computer start-up method, which decreased plant
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