Terminator You can choose anyone of the following characters to end. (Enter 0x0D) (Line break 0x0A) 4.2 Command Reference 4.2.1 Public command Public command applied universally to various kinds of instrument defined by the public command IEEE488, the public command starts with *. For example, *IDN? ， *GTL ， *LLO. This machine supports only a few Public commands. (1) *IDN? Description: inquiry instrument information and version information Return: , , , (2) *GTL Description: used to unlock keyboard and resume keyboard operation Return: None 4.2.2 Subsystem commands FREQuency Subsystem (1) FREQuency Description: set the measurement frequency Parameter:
100, 120, 400, 1000, 4000, 10000, 40000, 50000, 75000, 100000 or 100Hz,120Hz, 400Hz, 1kHz, 4kHz, 10kHz ,40kHz, 50kHz, 75kHz, 100kHz (Please refer to the model of LCR.) Return: None (2) FREQuency ? Description: query current test frequency Parameter: None Return: (Please refer to the FUNCtion Subsystem (1) FUNCtion:impa Description: Select the main parameter type Parameter: Return: None (2) FUNCtion:impa ? 20