Remote Operation 12-7
To connect Model 6514 to the IEEE-488 bus, follow these steps:
1. Line up the cable connector with the connector located on the rear panel. The connector
is designed so that it will fit only one way. Figure 12-3 shows the location of the
IEEE-488 connector.
2. Tighten the screws securely, making sure not to over tighten them.
3. Connect any additional connectors from other instruments as required for your
application.
4. Make sure that the other end of the cable is properly connected to the controller. Most
controllers are equipped with an IEEE-488 style connector, but a few may require a dif-
ferent type of connecting cable. See your controllers instruction manual for information
about properly connecting to the IEEE-488 bus.
NOTE 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 times the number of
devices, whichever is less. Not observing these limits may cause erratic bus operation.
Primary address selection
Model 6514 ships from the factory with a GPIB address of 14. When the instrument powers
up, it momentarily displays the primary address. You can set the address to a value of 0-30. Do
not assign the same address to another device or to a controller that is on the same GPIB bus.
Usually controller addresses are 0 or 21, but see the controllers instruction manual for details.
Make sure the address of the controller is the same as that specified in the controllers program-
ming language.
The primary address is checked or changed from the GPIB menu, which is accessed by press-
ing SHIFT and then GPIB. Press the
or key to display the present address (i.e. ADDR: 14).
RS232
CHASSIS
120
AC
AC
AC
AC
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
MADE IN
U.S.A.
Figure 12-3
IEEE-488 connector location
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