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LabVIEW is widely used as virtual instrument development environment with powerful functions. The software of test equipment is designed based on LabVIEW, which can read the pressure value in EXCEL and send simulated pressure signal to pressurization controller through RS485. The pressurization controller can control the solenoid on and off according to the received pressure value so as to verify the function of pressurization controller. Furthermore, the software has friendly interface, convenient for operation and observation, achieving the effective reduction of computational complexity, real time read and sending.