JPS6260001A - Digital process controller - Google Patents

Digital process controller

Info

Publication number
JPS6260001A
JPS6260001A JP20082085A JP20082085A JPS6260001A JP S6260001 A JPS6260001 A JP S6260001A JP 20082085 A JP20082085 A JP 20082085A JP 20082085 A JP20082085 A JP 20082085A JP S6260001 A JPS6260001 A JP S6260001A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
data
memory
ee
prom
loss
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP20082085A
Inventor
Genichi Watanabe
Original Assignee
Shimadzu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To eliminate the loss of stored data completely by using a programmable ROM which is erasable and rewritable electrically as a memory for down-load storage.
CONSTITUTION: When a control program, etc., is loaded from the host computer of a central control room through a down communication line and a bus 6, a microprocessor 1 receives data and stores it in the electrically erasable and rewritable programmable ROM, i.e. EE.PROM 4 directly or after storing it a working area memory 3 temporarily. In this case, the data are stored in the EE.PROM 4 under the control of software through a memory erasing/ writing control circuit 5 with write data and a write command from the system bus 6. Therefore, the loss of stored data caused because of the necessity of a battery backup is eliminated completely.
COPYRIGHT: (C)1987,JPO&Japio
JP20082085A 1985-09-10 1985-09-10 Digital process controller Pending JPS6260001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20082085A JPS6260001A (en) 1985-09-10 1985-09-10 Digital process controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20082085A JPS6260001A (en) 1985-09-10 1985-09-10 Digital process controller

Publications (1)

Publication Number Publication Date
JPS6260001A true true JPS6260001A (en) 1987-03-16

Family

ID=16430744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20082085A Pending JPS6260001A (en) 1985-09-10 1985-09-10 Digital process controller

Country Status (1)

Country Link
JP (1) JPS6260001A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630139A (en) * 1994-02-10 1997-05-13 Nec Corporation Program download type information processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630139A (en) * 1994-02-10 1997-05-13 Nec Corporation Program download type information processor

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