Section 2: General operation
Series 2200 Programmable DC Power Supplies Reference Manual
2-28
2200S-901-01 Rev. C / March 2016
To connect the Series 2200 to the IEEE-488 bus, line up the cable connector with the connector
located on the rear panel. Install and tighten the screws securely, making sure not to overtighten
them (see
(on page 2-13) for the location of the connections).
Connect any additional connectors from other instruments as required for your application. Make sure
the other end of the cable is properly connected to the controller. You can only have 15 devices
connected to an IEEE-488 bus, including the controller. The maximum cable length is either 20
meters or two meters multiplied by the number of devices, whichever is less. Not observing these
limits may cause erratic bus operation.
Primary address
The Series 2200 ships from the factory with a GPIB primary address of 22. You can set the address
to a value from 0 to 30, but do not assign the same address to another device or to a controller that is
on the same GPIB bus (controller addresses are usually 0 or 21).
Terminator
When receiving data over the GPIB, the instrument terminates messages on any line feed character
or any data byte with EOI asserted (line feed with EOI asserted is also valid). When sending data, it
appends a line feed character to all outgoing messages. The EOI line is asserted with the terminating
line feed character.
Connect to an external computer with USB
To connect to an external computer with USB:
1. Install a VISA driver on your computer. This driver is available on the Keithley Instruments
website.
2. Connect the instrument to the computer with a USB cable. The computer will then recognize the
power supply as a USB device.
Figure 11: Connect the instrument to the computer
