| 摘要 |
An improved programmable controller which includes a non-destructive memory program storage means wherein the controller is programmable by altering the program by substitution of the non-destructive memory storage means. The memory program storage means is comprised of a first memory portion which stores an operation program for the apparatus and a second memory portion which controls the sequence of execution of the operation program. The second memory portion can simultaneously address a location in the first memory portion and a location in an input-output data interface memory.
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