DEVICE FOR INPUTTING DISCRETE SIGNALS OF COMPLEX TECHNICAL SYSTEMS

Abstract

The utility model relates to the field of control and measuring equipment and can be used to obtain information on the state of external devices with discrete output signals of alternating and direct current (relays, limit switches, discrete humidity, flow, level sensors with an output signal of the "dry contact" or "transistor switch" type, etc.) of actuators of complex technical systems (CTS), including facilities of nuclear power, the fuel and energy complex, the oil and gas industry. The objective of the utility model is to expand the functional capabilities of the device due to the ability to simultaneously monitor the state of a large number of external devices with discrete output signals of alternating and direct current, as well as the use of wired and wireless radio frequency communication interfaces. The device for inputting discrete signals of complex technical systems comprises a programmable logic controller 2 with a central processor unit 5,a data transmission bus 14 and is characterized in that the programmable logic controller 2 includes an external power supply unit 3 connected to a DC power supply interface 4, and the central processor unit 5 located in the programmable logic controller 2 is electrically connected to a RAM unit 6, a ROM unit 7, a real-time unit 8, a first internal interface unit 9 having the ability to communicate with external devices via a wired digital data transmission interface 10, a second internal interface unit 11 having the ability to communicate with external devices via a wired digital data transmission interface 12, an internal bus unit 13, by means of which the programmable logic controller 2 is electrically connected via a power and data transmission bus 14 to a first external interface unit 15 having the ability to communicate with external devices via a wired digital data transmission interface 16,a second external interface unit 17, which is electrically connected to a data transmission unit 18, having the ability to communicate with external devices via a radio frequency data transmission interface 19, a first DC power input unit 20, connected to a DC power interface 4 and a second external interface unit 17, n-number of AC discrete input units 21, the discrete inputs of which are connected to controlled devices 22, m-number of DC discrete input units 23, the discrete inputs of which are connected to controlled devices 24, an AC power input unit 25, connected to an AC power interface 26 and the AC discrete input units 21, a second DC power input unit 27, connected to a DC power interface 4 and the DC discrete input units 23,In this case, each of the units is equipped with LEDs to indicate the operation and status of the device, and the units themselves are removable and installed in a common housing 1. The introduction of discrete AC input units into the device design together with discrete DC input units leads to an expansion of the range of controlled external devices with discrete output signals of the actuators of the STS. Optimization of the design is ensured by the introduction of a real-time unit, internal interface units, as well as external interface units with wired and radio-frequency interfaces, the provision of LEDs to indicate the operation and status of the device for each of the units, and the implementation of these units as removable. The introduction of an external power supply unit, the first DC power input unit, into the design of the device,The second DC power input unit and the AC power input unit provide reliable and stabilized power to the device's internal units. All of this combined ensures the desired technical result in terms of expanding the device's functionality. Thus, the proposed technical solution expands the device's functionality by enabling simultaneous monitoring of a large number of external devices with discrete AC and DC output signals, as well as the use of wired and wireless RF communication interfaces. 1 fig.

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