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Development of PC-based control -- 1985 |
Member of Fortune 500
Until 1981, Flowcon was owned
by Berwind Instruments, to give an otherwise drab corporate report on rail car
manufacturing a high tech look.
The inability to stamp
out custom systems like cookies eventually "lost its luster" so they sold off
Flowcon to its current ownership. |
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The Idea for a PC Based System - Radio Shack
In the early '80s, Radio Shack
asked Flowcon if we could control their new Conveyor
System in Ft. Worth, TX using their
computers. We agreed, and from that experience, we initiated PC-based batch control
systems to replace our dedicated "model 2200" systems. |
Standardized Processing
The challenge was to use the PC to do
things it was not normally suited to do.
| Real Time Control: we solved this by
creating our own execution kernel that switches tasks on a timed interrupt. |
| Communicate with relays and serial devices. |
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Modular
| The enclosure provides a wireway, barrier
strips for attaching wires, removable brain board, fused relays, and optically isolated
signals. |
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A Five Scale Application
| All scales weigh simultanously and can be
sized differently, for optimal accuracy and speed |
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Custom Processes
| Typical of a feed-mill, this computer
directed hand-add station prompts and verifys every operator addition. |
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