A control system that realizes one-screen multi-machine control on a touch screen by shorting ports

Abstract

The invention relates to one-screen multi-machine control over a touch screen, in particular to a control system for conducting one-screen multi-machine control over the touch screen by changing the short-circuit mode of an upper circuit port. The control system comprises the touch screen and a master control circuit. The master control circuit comprises a master control CPU. The touch screen is connected with the master control CPU through an RS-485 serial port. The control system is characterized in that a master control circuit IO interface comprises a plurality of short circuit terminals and a jumper cap, the short circuit terminals are connected to the master control CPU, and when the jumper cap is in short-circuit connection with different short circuit terminals, the master control CPU detects the level of each short circuit terminal; the master control CPU configures salve station addresses corresponding to equipment according to the detected level of the IO interface to control the different kinds of equipment. According to the control system, dial switches are arranged on the circuit, so that the current state is defined, the current state is recognized, the corresponding received and transmitted data are determined, and therefore the one-screen multi-machine control mode is achieved.

Description

technical field

[0001] The invention relates to one-screen multi-machine control of a touch screen, in particular to a control system for realizing one-screen multi-machine control of a touch screen by changing the short-circuit mode of ports on a circuit. Background technique

[0002] At present, in the occasions such as street lighting or low-power products, many companies have designed single-phase equipment with 220V input for different power supply environments. If it needs to be used in three-phase power supply occasions, multiple equipment can be used in combination. solution.

[0003] Taking the smart energy-saving clean power supply currently on the market as an example, it can be used in single-phase power supply occasions or three-phase power supply occasions. In the case where the three devices are combined into a set of three-phase equipment, it is necessary to monitor the three devices in the set synchronously through a touch screen, and different working mode...

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