Method for controlling switching signal based on EVT combinational logic

Abstract

The invention discloses a method for controlling a switching signal based on EVT combinational logic, which comprises the steps of setting T parameters, setting AL parameters and setting IS parameters, performing combinational logic operation by taking the T parameter setting, the AL parameter setting and the IS parameter setting as one of EVT condition signals, and performing action control on an EVT. Compared with a common relay switch control method, the control conditions are more, and the control modes are more diversified. Meanwhile, the control conditions can be set, so that the same condition is flexible and changeable and is not rigid like a traditional control mode, and working requirements under various complex conditions can be better met. Through a combinational logic mode, the control is more precise, and through addition of debugging parameters such as delay return difference, a relay works more stably and safely, so that the situation of damage to equipment is greatly reduced, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the field of EVT logic control switch signals, in particular to a method for controlling switch signals based on EVT combination logic. Background technique [0002] A flexible control method for relays in environmental test equipment, the control modes of the relays include: selecting a relay mode according to a control variable, selecting a control variable mode according to a relay, a logic combination mode, and a composite control variable mode; The value of the action parameter required for the action of the relay, the value of each action parameter is reflected in the form of binary logic; the action of the corresponding relay is controlled according to the control variable, and the action unit connected to the relay is also started or stopped accordingly. The traditional temperature controller automatically samples the ambient temperature through the temperature sensor and monitors it in real time. When the ambient tempe...

AI Technical Summary

Problems solved by technology

The traditional temperature controller automatically samples and monitors the ambient temperature through the temperature sensor. When the ambient temperature reaches the control set value, the control circuit starts. When the traditional cooling function is working, the cooling switch will not be turned on in time, and the switch will start frequently. conditions, it will lead to unstable temperature control, and when the controlled equipment cooling system uses a compressor, it is easy to cause damage to the compressor, etc.

Images