JPS6470849A - Home bus controller - Google Patents
Home bus controllerInfo
- Publication number
- JPS6470849A JPS6470849A JP62226678A JP22667887A JPS6470849A JP S6470849 A JPS6470849 A JP S6470849A JP 62226678 A JP62226678 A JP 62226678A JP 22667887 A JP22667887 A JP 22667887A JP S6470849 A JPS6470849 A JP S6470849A
- Authority
- JP
- Japan
- Prior art keywords
- abnormality
- bus
- bit
- controller
- bus controller
- 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
Links
Landscapes
- Debugging And Monitoring (AREA)
Abstract
PURPOSE:To simply and easily detected the abnormality of a bus by utilizing a start bit of a command and allowing a home bus controller to detect the abnormality of the bit to decide the abnormality of the bus. CONSTITUTION:When an interface unit 8 in a connecting apparatus 11 e.g. connected to a bus 6 is failed or the apparatus 11 is an off-specification connecting apparatus mismatching its connection, the impedance of the bus 6 is dropped, the normal transmission of a control signal transmitted from a home bus controller 9 by the bus 6 through an interface unit 7 is disabled, so that the level of the start bit 12 added to the shown control signal (command) to be sent is dropped. Thus, the abnormality of the start bit 12 is detected by allowing the controller 9 to always receive and monitor the bit 12 by utilizing the said status, and at the time of detecting the abnormality of the bit 12, displays the abnormality on a display device 10 as abnormality to inform it to the external.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226678A JPS6470849A (en) | 1987-09-11 | 1987-09-11 | Home bus controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226678A JPS6470849A (en) | 1987-09-11 | 1987-09-11 | Home bus controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6470849A true JPS6470849A (en) | 1989-03-16 |
Family
ID=16848936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62226678A Pending JPS6470849A (en) | 1987-09-11 | 1987-09-11 | Home bus controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6470849A (en) |
-
1987
- 1987-09-11 JP JP62226678A patent/JPS6470849A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0128574A3 (en) | Electrical load monitoring system and method | |
US4274156A (en) | Monitor for RF transmitter | |
JPS60117939A (en) | Information transmission system | |
EP0353723A3 (en) | Electronically controlled camera | |
EP0545828A3 (en) | Power source control apparatus for display unit | |
US4498196A (en) | Testable optically isolated control circuit | |
JPS6470849A (en) | Home bus controller | |
JPH0654888B2 (en) | Power line carrier communication device | |
JPH0440014B2 (en) | ||
CN104784780A (en) | Driving device for micoscale medicine injection pump | |
JPH0642466A (en) | Control of automatic water supply device | |
JPS55154854A (en) | Data communication unit | |
JPS62112460A (en) | Interphone equipment for nurse call | |
JPH0746399B2 (en) | Gas detection alarm device | |
JPH034880A (en) | Optical transmission system laser treating device | |
JPS61170160A (en) | Input and output device of automatic equipment | |
JPH04259440A (en) | Switch signal processor of device for medical treatment | |
JPS56165482A (en) | Abnormal diagnosing method of data transmission line | |
JPS6453239A (en) | Information processing system | |
JPS5723156A (en) | Fault monitoring system of information processor | |
JPH0450713Y2 (en) | ||
JPS57188192A (en) | Remote monitoring and controlling device | |
KR200290161Y1 (en) | Checking device for abnormality of robot automatic control device | |
JPS6419460A (en) | System controller | |
JPS62539B2 (en) |