JPS6488622A - Function expansion system for analog input device - Google Patents

Function expansion system for analog input device

Info

Publication number
JPS6488622A
JPS6488622A JP24469887A JP24469887A JPS6488622A JP S6488622 A JPS6488622 A JP S6488622A JP 24469887 A JP24469887 A JP 24469887A JP 24469887 A JP24469887 A JP 24469887A JP S6488622 A JPS6488622 A JP S6488622A
Authority
JP
Japan
Prior art keywords
analog
analog input
signal
control signal
input signal
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
JP24469887A
Other languages
Japanese (ja)
Inventor
Takuya Fujita
Yoshinori Ogura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Facom Corp
Original Assignee
Fuji Facom 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
Application filed by Fuji Facom Corp filed Critical Fuji Facom Corp
Priority to JP24469887A priority Critical patent/JPS6488622A/en
Publication of JPS6488622A publication Critical patent/JPS6488622A/en
Pending legal-status Critical Current

Links

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  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To decrease the number of circuit elements by receiving an analog control signal on a route which receives an analog input signal and converts the signal to digital. CONSTITUTION:An analog-converted control signal (analog control signal 50s) is received to the same route that receives an analog input signal. Accordingly, an analog control signal line 50 to supply the signal 50s is connected to an analog input connection terminal (4) different from that (1) to which an analog input signal line 51 is connected, and a multiplexer MPX4 is switched by a switching control circuit 11 in accordance with a prescribed sequence, so that an analog input signal 51s and the analog control signal 50s are respectively inputted to an analog-digital converter 3. As a result, the connection terminal and the analog-digital converter can be used in common to these for analog input signal, hence the number of circuit elements can be reduced.
JP24469887A 1987-09-29 1987-09-29 Function expansion system for analog input device Pending JPS6488622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24469887A JPS6488622A (en) 1987-09-29 1987-09-29 Function expansion system for analog input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24469887A JPS6488622A (en) 1987-09-29 1987-09-29 Function expansion system for analog input device

Publications (1)

Publication Number Publication Date
JPS6488622A true JPS6488622A (en) 1989-04-03

Family

ID=17122602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24469887A Pending JPS6488622A (en) 1987-09-29 1987-09-29 Function expansion system for analog input device

Country Status (1)

Country Link
JP (1) JPS6488622A (en)

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