JPS5647193A - Remote monitor controller - Google Patents
Remote monitor controllerInfo
- Publication number
- JPS5647193A JPS5647193A JP12368879A JP12368879A JPS5647193A JP S5647193 A JPS5647193 A JP S5647193A JP 12368879 A JP12368879 A JP 12368879A JP 12368879 A JP12368879 A JP 12368879A JP S5647193 A JPS5647193 A JP S5647193A
- Authority
- JP
- Japan
- Prior art keywords
- data
- station device
- slave
- word
- disturbance
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/14—Calling by using pulses
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer And Data Communications (AREA)
- Selective Calling Equipment (AREA)
- Information Transfer Between Computers (AREA)
Abstract
PURPOSE:To prevent malfunction due to disturbance, a power failure, etc., by providing a slave-station device, having a microprocessor, with a nonvolatile read/ write memory and by cyclically transferring plant data from a master-station device into the memory. CONSTITUTION:In a master-station unit 1 at a control spot required plant data are added in set word 4, which is cyclically sent as transmitted data to slave-station device 2-1-2-n at controlled spots at any time together with synchronizing word 3 and selective control word 5. Slave-station device 2-1-2-n receive the data and check errors, so that the data when found correct will be written in nonvolatile read/write memories. Therefore, data are rewritable at any time, erroneous writing operation due to disturbance, noises, etc., can be prevented and even in a power failure, data are retained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12368879A JPS5647193A (en) | 1979-09-26 | 1979-09-26 | Remote monitor controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12368879A JPS5647193A (en) | 1979-09-26 | 1979-09-26 | Remote monitor controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5647193A true JPS5647193A (en) | 1981-04-28 |
JPS6324360B2 JPS6324360B2 (en) | 1988-05-20 |
Family
ID=14866856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12368879A Granted JPS5647193A (en) | 1979-09-26 | 1979-09-26 | Remote monitor controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647193A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58173996A (en) * | 1982-04-05 | 1983-10-12 | Hitachi Ltd | Remote monitor controller |
JPS62173548A (en) * | 1986-01-27 | 1987-07-30 | Matsushita Electric Works Ltd | Load control system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5183988A (en) * | 1975-01-20 | 1976-07-22 | Tokyo Shibaura Electric Co | ENHOKA NSHISEIGYO SOCHI |
JPS528443A (en) * | 1975-07-09 | 1977-01-22 | Hitachi Ltd | Collective setting system |
JPS53109083A (en) * | 1977-03-04 | 1978-09-22 | Hitachi Ltd | Setting velue controller with digital setting device |
-
1979
- 1979-09-26 JP JP12368879A patent/JPS5647193A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5183988A (en) * | 1975-01-20 | 1976-07-22 | Tokyo Shibaura Electric Co | ENHOKA NSHISEIGYO SOCHI |
JPS528443A (en) * | 1975-07-09 | 1977-01-22 | Hitachi Ltd | Collective setting system |
JPS53109083A (en) * | 1977-03-04 | 1978-09-22 | Hitachi Ltd | Setting velue controller with digital setting device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58173996A (en) * | 1982-04-05 | 1983-10-12 | Hitachi Ltd | Remote monitor controller |
JPS62173548A (en) * | 1986-01-27 | 1987-07-30 | Matsushita Electric Works Ltd | Load control system |
Also Published As
Publication number | Publication date |
---|---|
JPS6324360B2 (en) | 1988-05-20 |
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