Instruction manual

Troubleshooting
All my commands are failing
If you get the message Command cannot be carried out (i.e., the 0xB0 status byte), it's possible
that you haven't set the instrument to remote mode. Execute SetRemoteControl() before trying to
execute your commands.
Make sure you're using the correct COM port number on your computer. Suspect this if the LEDs on
the IT-E131 or IT-E132 interface boxes do not light up when you're sending commands.
Serial interface seems to be locked up
You've tried to send numerous different commands to the power supply, but none of them work --
your script hangs and needs to be stopped with ctrl-C.
First, check the LEDs on the IT-E131 or IT-E132 interface box. If you see the RX LED light, you
know your command is reaching the instrument. In this case, make sure the DC load's internal
address (under the menu → address) is set to 0.
If you see no blinking LED, suspect the interface box or the computer/driver.
B&K 1785, 1786B, 1787B, 1788 Python Library 15 January 2009 Page 11 of 14