Primary Address - Keithley 2601 Reference Manual

Section 11: Communications Interfaces
Figure 11-3
IEEE-488 and RS-232 connector locations
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 SourceMeter ships from the factory with a GPIB primary address of 26. If the GPIB or AUTO
interface selection is used, it momentarily displays the primary address on power-up. 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).
11-4
Series 2600 System SourceMeter® Instruments Reference Manual
Return to Section Topics 2600S-901-01 Rev. C / January 2008