JPS5585913A - Sequence control unit - Google Patents

Sequence control unit

Info

Publication number
JPS5585913A
JPS5585913A JP15850978A JP15850978A JPS5585913A JP S5585913 A JPS5585913 A JP S5585913A JP 15850978 A JP15850978 A JP 15850978A JP 15850978 A JP15850978 A JP 15850978A JP S5585913 A JPS5585913 A JP S5585913A
Authority
JP
Japan
Prior art keywords
input
area
output section
output
inputted
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
JP15850978A
Other languages
Japanese (ja)
Inventor
Takanori Tagashira
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15850978A priority Critical patent/JPS5585913A/en
Publication of JPS5585913A publication Critical patent/JPS5585913A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable to discriminate the defect in either of input and output section or external unit easily, and to diagnose the input and output section, by adding the high speed selector switch, level converter, and pattern generator and test input area. CONSTITUTION:When the failure diagnosis of input and output section 5 is desired, high speed switches 23, 24, 26, 27 are connected to T1, T2, T3, T4 side. Thus, the signal from the pattern generator 22 is inputted to the test input area 29 via the output buffer 11, transistor 12, fuse 13, level converter 25, and input buffer 15. When the pattern generator 22 outputs ''0'' state, it is inputted to the ''0'' state area 30, and when the ''1'' state is outputted, it is inputted to the ''1'' area 31, thus the high speed selection switch E32 is selected. Thus, when the input and output section 5 is correctly operated, the content of the test areas 30, 31 are respectively ''0'' and ''1''. If different, the input and output circuit of the input and output point is in failure.
JP15850978A 1978-12-25 1978-12-25 Sequence control unit Pending JPS5585913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15850978A JPS5585913A (en) 1978-12-25 1978-12-25 Sequence control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15850978A JPS5585913A (en) 1978-12-25 1978-12-25 Sequence control unit

Publications (1)

Publication Number Publication Date
JPS5585913A true JPS5585913A (en) 1980-06-28

Family

ID=15673280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15850978A Pending JPS5585913A (en) 1978-12-25 1978-12-25 Sequence control unit

Country Status (1)

Country Link
JP (1) JPS5585913A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57189209A (en) * 1981-05-12 1982-11-20 Oki Electric Ind Co Ltd Process input and output device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57189209A (en) * 1981-05-12 1982-11-20 Oki Electric Ind Co Ltd Process input and output device

Similar Documents

Publication Publication Date Title
JPS648465A (en) Tri-state bus circuit
SE8005409L (en) LINE UNIT FOR CONNECTING AN ANALOGUE LINE WITH A DIGITAL TELECOMMUNICATION EQUIPMENT
JPS5585913A (en) Sequence control unit
EP0238125A3 (en) Programmable sequencer
JPS56161761A (en) Diagnostic system for facsimile device
JPS5365021A (en) Display unit
JPS55136711A (en) Self-diagnosis unit for distributing amplifier
JPS55153188A (en) Memory unit
KR880000758A (en) Temperature controller for chiller
JPS5520448A (en) Inversion testing unit
JPS575474A (en) Signal switching device
JPS5525109A (en) Logic circuit
JPS5715296A (en) Testing system for storage device
JPS5617511A (en) Variable attenuating circuit
JPS54159137A (en) Selector
JPS56140448A (en) Logical operation circuit
JPS5665252A (en) Circuit test system
JPS56161762A (en) Facsimile device of tonal signal system
JPS56105399A (en) Memory element
JPS57157363A (en) Address stop controlling circuit
JPS55110309A (en) Automatic calibrating apparatus of process instrumentation system
JPS54137255A (en) Operation system for information processor
KR890004509A (en) Loopback Circuits for Analog and Digital Signals
JPS5636751A (en) Error detection system
JPS641029A (en) Zone generating circuit