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JPS58172741A |
PURPOSE: To improve resolution without increasing the number of bits of a D/A converter and to facilitate input/output processing, by providing D/A converters, comparators, etc., corresponding to input terminals, and providing D/A conver...
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JPS58146903A |
PURPOSE:To reduce the load of a CPU by comparing a value obtained by digitizing a measured value inputted from a process to be controlled with a set value, and when the difference is less than a fixed value, processing the input value re...
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JPS5837561B2 |
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JPS58121403A |
PURPOSE:To perform stable output control which is not influenced by variation in output due to disturbance by making a comparison between an output reference set signal and an integrated and averaged output feedback signal at optional sp...
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JPS58119039A |
PURPOSE: To reduce a load on a CPU, by correcting sampled data through not the CPU, but an arithmetic device. CONSTITUTION: The arithmetic device 6 based upon the command of a controller 2 is connected to the controller 2 and also connec...
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JPS58119003A |
PURPOSE:To obtain a device which prevents unnecessary equipment from being started by providing a means for sampling a pulse signal proportional to the amount of a load at specific intervals of time, and grasping the state of the load ac...
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JPS5832405B2 |
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JPS5899932U |
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JPS5894003U |
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JPS5890402U |
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JPS5868113A |
PURPOSE:To obtain a temperature control system which allows the temperature in a room to attain to a set value rapidly, by detecting sampled values at four successive points in a pulse train of sampled values showing the temperature in t...
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JPS5819675Y2 |
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JPS5819491Y2 |
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JPS5864529A |
PURPOSE: To perform efficient input and output control over a computer system by providing an interface part with a converting means for converting a signal sequence from a CPU into a standard signal sequence, and changing only the inter...
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JPS5864542A |
PURPOSE: To detect rapidly and to reduce a load on software, by adding a fall detecting one-shot circuit to the output side of an OR circuit, and making a comparison with data preceding to reading once a successive state change ends. CON...
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JPS5831412A |
PURPOSE:To perform highly accurate and stable control by successively executing sampling from plural points and then controlling operational points prepared in accordance with respective points after ending each smapling period. CONSTITU...
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JPS586963B2 |
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JPS583189B2 |
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JPS57207906A |
PURPOSE:To execute prescribed samplings within target sampling periods when direct digital control operations cannot be executed within sampling periods because special processing are generated, by outputting operational results in the p...
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JPS57184392A |
PURPOSE: To exclude a synchronizing circuit, a filter device, etc., by controlling plural ON/OFF signals supplied from the centralized controller side after comparing them with the reference value through a comparator provided at the ter...
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JPS57183294A |
PURPOSE:To simplify and reduce the cost of an entire circuit configuration of a servo motor by holding controlled deviation value information for servo systems while voltage supply to the servo systems is not eliminated and controlling t...
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JPS5747841Y2 |
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JPS57166203U |
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JPS57164306A |
PURPOSE:To achieve correspondence even at emergency, by providing addresses other than assigned ones as required, in the control assigning addresses to each of a plurality of terminal devices. CONSTITUTION:A central monitor controller 1 ...
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JPS5746082B2 |
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JPS57151604U |
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JPS57147710A |
PURPOSE:To improve the precision of internal combustion engine control by optimizing the A-D conversion of an input signal from each sensor by adequately selecting the acquisition order and acquisition time width of each signal from the ...
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JPS57141706A |
PURPOSE:To reduce a settleing time, by achieving the suppression of a steady state deviation due to an integral control element while obtaining a short response by a proportional control element. CONSTITUTION:A command value X via a samp...
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JPS5740917B2 |
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JPS5740754B2 |
In apparatus for controlling the speed and torque of a multiphase a.c. motor in accordance with digital control signals, a first regulation circuit regulates the frequency of the a.c. electrical signal applied to the motor and another re...
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JPS57131380A |
A method and apparatus are provided for maintaining a predetermined energy balance in a device, such as an aluminum reduction cell. The apparatus includes a relatively short and thin heat flow sensor having a first and second thermocoupl...
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JPS5737918B2 |
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JPS5735318B2 |
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JPS57120150A |
PURPOSE: To simplify the constitution and to increase the practical efficiency for a peripheral circuit which is used for a digital process of analog signals, by using a single D/A converter, an analog comparator and a sample holding cir...
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JPS57103505A |
PURPOSE:To avoid the excessive reactive power, by accelerating the detecting period for the increasing conditions of the number of devices compared with the normal mode in the time band where the load is suddenly increased. CONSTITUTION:...
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JPS57101422A |
PURPOSE: To quicken a response speed, by transmitting a sample value of an analog signal through the use of a plurality of insulating tranformers one by one sequentially. CONSTITUTION: Four analog signals are outputted from a D/A convert...
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JPS5728448Y2 |
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JPS5721042Y2 |
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JPS5764813A |
PURPOSE:To simplify the constitution and also to increase the image resolution for a multispot on/off controller, by providing a storage means which stores each control arithmetic result of plural input data which are supplied periodical...
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JPS5755037U |
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JPS5738213U |
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JPS5736528A |
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JPS5717010A |
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JPS574759B2 |
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JPS574758B2 |
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JPS575101A |
PURPOSE:To obtain a control system which is stable and responds quickly to variation in output by integrating the output feedback signal of a closed loop control system for a certain time, by resetting it after comparing the output of th...
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JPS571011B2 |
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JPS56155406A |
PURPOSE:To improve program efficiency and lower the cost of wiring work by simultaneously processing input-output data. CONSTITUTION:An address line 4 for selecting terminal devices 21-2n, a segment line 5 for selecting the input-output ...
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JPS56101209A |
PURPOSE:To reduce the load of a control computer, by making sampling in synchronizing with the power supply at the system start and taking the sampling time longer. CONSTITUTION:When a switch SW1 is closed to start the system, the timer ...
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JPS5694401A |
PURPOSE:To control the process in a minimum setting time without overrun, by switching automatically the process from 100% operation quantity to the noncontrol state and from the noncontrol state to Festwertregelung on a basis of forecas...
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