History


Help on query formulation
The structure and programming of stored-program control. SPS - Aufbau und Programmierung. (German)
Heidelberg: Huethig. 1989. 156 p. 2. rev. ed. First edition under the title: Speicherprogrammierbare Steuerungen, by the same author. Ser. Title: Speicherprogrammierbare Steuerungen. v. 1. [ISBN 3-7785-1869-0]
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