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5 - Front Panel Operation
5 - Programming the Output Relay (option 760 only)
Units with option 760 have isolation and polarity reversal relays connected to the output and sense
terminals. (Option 760 is not available on Agilent 6631B units.)
To control the relays independently of the Output On/Off switch, proceed as follows:
Action
On the Function keypad, press Output, and scroll through the Output
1.
menu until you get to the RELAY command. The display indicates
whether the relay is presently closed (ON), or open (OFF).
Use the Ë and Ì keys to select either ON to close the relay or OFF to
2.
open the relay. Note that the output relays always open or close
whenever the Output On/Off key is pressed.
To control the polarity of the output relays, proceed as follows:
Action
1.
On the Function keypad, press Output, and scroll through the Output
menu until you get to the REL:POL command. The display indicates the
present condition of the relay (either normal or reversed).
Use the Ë and Ì keys to select either NORM or REV. NORMal causes
2.
the relay polarity to be the same as the dc source output REVerse causes
the relay polarity to be opposite to that of the dc source output.
6 - Setting the GPIB Address and RS-232 Parameters
Your dc source is shipped with the GPIB address set to 5 This address can only be changed from the
front panel using the Address menu located under the Address key. This menu is also used to select the
RS-232 interface and specify RS-232 parameters such baud rate and parity.
Set the GPIB address as follows:
Action
1.
On the System keypad, press Address.
2.
Enter the new address. For example, Press 7, Enter.
Configure the RS-232 interface as follows:
Action
On the System keypad, press Address.
1.
Scroll through the Address menu by pressing q . The interface command
2.
lets you select the RS-232 interface. The baudrate command lets you
select the baudrate. The parity command lets you select the parity. The
flow command selects the flow control options.
The Ë and Ì keys let you select the command parameters.
3.
46
Display
RELAY ON
RELAY OFF
Display
REL:POL NORM
RELAY OFF
Display
ADDRESS 5
ADDRESS 7
Display
ADDRESS 5
INTF RS232
BAUDRATE 9600
PARITY EVEN
XON-XOFF
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