With GPIB (and IEEE 488.1 protocol) I am trying to program a Keithley 230 programmable voltage source. The only thing I do is writing a certain voltage in a string to the device by VISA write (for 1 Volt I send V1F1X). When i continuously switch the voltage from 0 V to 1 V and back, producing a block wave, the time between each cycle is around 160 ms, which i have observed with an oscilloscope. This is way too long for my application (must be between 1-20 ms). Is there an internal delay between each write operation? Or is there a way to speed up the GPIB communication with the device. In the manual it says that the response time of the device is less than 3 ms.
Thanks in advance,
Robert
