摘要:
Centralized registers in which commands can be written are provided in correspondence with a plurality of control modules. Centralized registers for managing the pre-emption status of control modules and their tree-configuration hierarchical relations are also provided in correspondence with a plurality of control modules. Control modules to which a command should be transmitted are specified by looking up the registers that manage the pre-emption status and the tree-configuration hierarchical relations. When control modules have been specified, the latched command is written to the registers in which commands can be written.
摘要:
A method and apparatus for operating a filling machine having a stationary part, and movable part provided with filling elements, whereby each filling element has associated therewith at least one electrically actuatable valve and a signal emitter which is actuated by the filling material rising in a filling vessel or container briefly pressed into engagement on the filling element for filling thereof. For the filling elements the operating data are stored in a common electronic control unit connected with the terminals of the signal emitter as well as with the actuating device of the valves of the filling element; during a cycle phase of a timing cycle encompassing all filling elements and running for a predetermined period of time, by means of this electronic control unit, with the filling elements switched ready for operation, the operating conditions of the signal emitter or emitters and of the valve or valves of each filling element are scanned, whereby the predetermined time period amounts to a fraction of the time necessary for the completion of a filling process; and that each time a timing cycle is finished, there begins a new timing cycle, and the data of the operating conditions obtained by the cyclic scanning are stored in the electronic control unit and are compared with the preset operating data, and a possibly necessary signal is emitted to the valve or valves.
摘要:
A binary sorting code is read from documents and transmitted to a sorting machine where the code for each document is decoded and used to direct the document to a specific stacker. Cycling of the sorter is controlled by a sequencer responsive to timing pulses from a shaft encoder. Each sequence cycle is initiated by a flip-flop circuit responsive to a document detector. An additional flip-flop provides for fault detection in the system.
摘要:
A glass polymer composite and a method of preparing same consisting of crushed glass with a mixture of sizes to obtain minimum void volume impregnated with monomer which is polymerized in situ. Certain construction materials such as sewer pipe and exterior wall facings made from this material are illustrative.
摘要:
A data communications network for magnetic resonance imaging (MRI) systems provides characteristics ideal for low noise operation and low cost at speeds as high as 1 Mbytes/sec and provides a serial data bus for performing medium speed control and data acquisition functions. System architecture is extremely versatile and also low in cost. Each node of the communications system may be provided with an interface implemented with electronically programmable array logic (EPLD) applications specific integrated circuits (ASIC) with 1800 equivalent gates per CMOS integrated circuit. The resulting chip set is self clocking (no local oscillator is required) and nominally provides 20 bits of latched output and input with parity checking in a four-chip set configuration. A minimal two-chip set configuration can be used for nodes that need only 4 bits of latched input and output data (while still supporting parity checking). Different types of peripherals can easily be accommodated, and the bus is self configuring.
摘要:
An information transfer system for transferring binary information between a central unit and modular peripheral assemblies via a bus system. The bus system is designed as a serial ring shift register. An interface unit which permits parallel transfer of the individual binary information is interposed between the peripheral assembly and the bus.
摘要:
Control circuitry for a work strip stamping machine to control the longitudinal advance and the transverse strip shifting so that a selected number of rows can be automatically stamped, the control being synchronized with the cycle of the stamping member by a sensor that generates an initiating pulse to start the next advance and/or shift of the strip. The circuit includes CMOS flipflops and shift registers that provide a repeating sequence of pulses which are delivered through buffers to the solenoids that actually initiate the advance and shift of the work strip. The circuit is operated from the AC mains, but includes a battery back-up circuit that automatically takes over in the event of a power failure and inhibits further cycling of the system while at the same time maintaining voltage on the CMOS components of the circuit to retain a memory of its status until the AC power is restored.
摘要:
A programming control system for controlling the processing steps of an electrostatic printing machine of the type employing an endless photoreceptor belt. A photoreceptor speed sensitive element in the form of a transfer roller is utilized for resetting on .Iadd.a .Iaddend.complete machine timing cycle of processing operation. This cycle, called pitch is applied to the belt and comprises a predetermined number of electrical pulses some of which control machine events.