Processing time of main commands and Impedance measurement time
Processing time of main commands
The command processing time is the time until the next command is accepted.
It does not include the response time of the hardware.
The processing times indicated here are typical values.
They are not warranted.
KFM2005
Command | GPIB*1 Processing Time(ms) |
USB Processing Time(ms) |
RS232C*2 Processing Time(ms) |
Description |
*IDN? | 8 | 5 | 32 | Queries the model name. |
INP ON | 4 | 4 | 7 | Load on |
SOUR:CURR 0.2 | 6 | 5 | 14 | Load current setting |
IMP:CURR:AC:FREQ 1000 | 8 | 7 | 22 | Frequency setting |
STAT:OPER:MEAS? | 8 | 6 | 16 | Queries the event of the MEASure status. |
FETC:IMP? | 12 | 7 | 26 | Queries the Impedance measured data. |
FETC:CURR? | 13 | 10 | 26 | Queries the current msasured data. |
MEAS:IMP? | 600 | 600 | 600 | Reset a portion of the setting to default, starts the measurement, and queries the impedance measured data. |
READ:IMP? | 600 | 600 | 600 | Starts the measurement, and queries the impedance measured data (10 kHz, AVE:1, 1) |
*RST | 15 | 14 | 17 | Performs a device reset |
*1: Using USB-GPIB by National Instruments.
*2: Data rate setting: 19200 bps. X-Flow control: XFLOW.
KFM2030
Command | GPIB*1 Processing Time(ms) |
USB Processing Time(ms) |
RS232C*2 Processing Time(ms) |
Description |
*IDN? | 8 | 5 | 27 | Queries the model name. |
INP ON | 4 | 4 | 7 | Load on |
SOUR:CURR 0.2 | 6 | 5 | 11 | Load current setting |
IMP:CURR:AC:FREQ 1000 | 8 | 7 | 17 | Frequency setting |
STAT:OPER:MEAS? | 8 | 4 | 16 | Queries the event of the MEASure status. |
FETC:IMP? | 12 | 7 | 26 | Queries the Impedance measured data. |
FETC:CURR? | 9 | 7 | 22 | Queries the current msasured data. |
MEAS:IMP? | 520 | 520 | 520 | Reset a portion of the setting to default, starts the measurement, and queries the impedance measured data. |
READ:IMP? | 520 | 520 | 520 | Starts the measurement, and queries the impedance measured data (10 kHz, AVE:1, 1) |
*RST | 15 | 16 | 19 | Performs a device reset |
*1: Using USB-GPIB by National Instruments.
*2: Data rate setting: 19200 bps. X-Flow control: XFLOW.
The approximate time for the impedance measurement "S" can be expressed by the following formula. Set the time interval "ΔT (time to read the measurement data after the measurement started)" for longer than the setting time of the impedance measurement "S".
(Example) When it is set for the Frequency at 0.1 Hz, the Integral average count for 4 times, and the Moving average count for 2 times.
The time for the impedance measurement takes (0.8 + 10 X 4) X 2 = 81.6 seconds.
When it is set for the time interval "ΔT" at less than 81.6 seconds, you can not read the correct measurement data because the impedance measurement is not completed. Set the time interval "ΔT" with extra allowance.