摘要:
A programmable data link module (32) for use in a time division multiplexing control system (30) having a plurality of modules interconnected by a bus (40) for passing control signals between data link modules on a serial multiplex basis. Each module includes an integrated circuit (80) having signal conditioning circuits (180, 186 and 188) including a programmable hysteresis circuit (126), a power on reset delay circuit (190), a safety input inhibit circuit (220), a clock loss detect circuit (240), a safety output protection cicuit (262), a data verifier (260), a polarity selector for a third output terminal (350), an input synchronizer (182 and 184), a combined mode/sync output terminal (110), a multiplex clock output terminal (108), a programming circuit (232) for accepting programming over the clock bus (44) and data bus (46), input/output word extender circuits (104, 106), a high voltage protection circuit (420) including a transistor (600) and a data bus integrity checker (630).
摘要:
A field communication apparatus may include a first communication unit and a second communication unit each of which performs communication between a plurality of field devices and a host device, the first communication unit and the second communication unit constituting a duplex unit, a first explosion-proof housing that accommodates the first communication unit, and a second explosion-proof housing that accommodates the second communication unit. The first communication unit may be capable of being removed from the field communication apparatus while being accommodated in the first housing, and the second communication unit may be capable of being removed from the field communication apparatus while being accommodated in the second housing.
摘要:
A field communication apparatus may include a first communication unit and a second communication unit each of which performs communication between a plurality of field devices and a host device, the first communication unit and the second communication unit constituting a duplex unit, a first explosion-proof housing that accommodates the first communication unit, and a second explosion-proof housing that accommodates the second communication unit. The first communication unit may be capable of being removed from the field communication apparatus while being accommodated in the first housing, and the second communication unit may be capable of being removed from the field communication apparatus while being accommodated in the second housing.
摘要:
The invention relates to a suction device for medical purposes with one or more side apertures and with a valve which responds to a vacuum. The invention is characterised in that the side apertures are covered by film halves which overlap in the middle, one of said halves being made from highly elastic thin material while the other is made from a stiff inflexible material and covers the flexible film in the overlap region. The side apertures can also take the form of elongated apertures. An advantage of this embodiment is the low damage to tissue when used in the overpressure area especially in minimally invasive surgical applications.
摘要:
A distributed control system for a lighting system, including: one or more control devices for entering parameter-controlling inputs according to a specified format, the parameter-controlling inputs directing the operation of the lighting system, the control devices including a data processor coupled to the parameter-controlling inputs and a memory coupled to the processor; one or more computing devices for storing, editing, and displaying data related to the parameter-controlling inputs, the computing devices including at least a data processor, a memory coupled to the processor, and a data display device coupled to the processor; one or more load interface modules each including a data processor for controlling the respective interface module and for monitoring data link signals, each of the load interface modules supporting at least one device-control data link network; a control-resources data link network connecting the control devices, the computing devices, and the load interface modules; and at least one devicecontrol data link network having a common path for connecting the load interface module to a plurality of multiple-parameter lamp units having a plurality of adjustable parameters relating to beam characteristics and a driver for controlling a plurality of the parameters in response to the parameter-controlling inputs.
摘要:
A programmable data link module (32) for use in a time division multiplexing control system (30) having a plurality of modules interconnected by a bus (40) for passing control signals between data link modules on a serial multiplex basis. Each module includes an integrated circuit (80) having signal conditioning circuits (180, 186 and 188) including a programmable hysteresis circuit (126), a power on reset delay circuit (190), a safety input inhibit circuit (220), a clock loss detect circuit (240), a safety output protection cicuit (262), a data verifier (260), a polarity selector for a third output terminal (350), an input synchronizer (182 and 184), a combined mode/sync output terminal (110), a multiplex clock output terminal (108), a programming circuit (232) for accepting programming over the clock bus (44) and data bus (46), input/output word extender circuits (104, 106), a high voltage protection circuit (420) including a transistor (600) and a data bus integrity checker (630).
摘要:
The invention relates to a suction device for medical purposes with one or more side apertures and with a valve which responds to a vacuum. The invention is characterised in that the side apertures are covered by film halves which overlap in the middle, one of said halves being made from highly elastic thin material while the other is made from a stiff inflexible material and covers the flexible film in the overlap region. The side apertures can also take the form of elongated apertures. An advantage of this embodiment is the low damage to tissue when used in the overpressure area especially in minimally invasive surgical applications.
摘要:
A distributed control system for a lighting system, including: one or more control devices for entering parameter-controlling inputs according to a specified format, the parameter-controlling inputs directing the operation of the lighting system, the control devices including a data processor coupled to the parameter-controlling inputs and a memory coupled to the processor; one or more computing devices for storing, editing, and displaying data related to the parameter-controlling inputs, the computing devices including at least a data processor, a memory coupled to the processor, and a data display device coupled to the processor; one or more load interface modules each including a data processor for controlling the respective interface module and for monitoring data link signals, each of the load interface modules supporting at least one device-control data link network; a control-resources data link network connecting the control devices, the computing devices, and the load interface modules; and at least one devicecontrol data link network having a common path for connecting the load interface module to a plurality of multiple-parameter lamp units having a plurality of adjustable parameters relating to beam characteristics and a driver for controlling a plurality of the parameters in response to the parameter-controlling inputs.