Programming External Protection And The Digital Port Functions; Setting The Gpib Address And Programming Language - Agilent Technologies 66111A User Manual

8 - Programming External Protection and the Digital Port Functions

Your dc source is shipped with the output port function set to RIDFI mode. In this mode the port
functions as a remote inhibit input with a discrete fault indicator output signal. You can also configure
the port to act as a Digital Input/Output device.
To configure the RIDFI mode of the port, proceed as follows:
Action
1. On the Function keypad, press Output.
Scroll through the Output menu by pressing q. The PORT command lets you select
2.
either the RIDFI or the DIGIO function. Press Enter when done.
Scroll to the RI command to configure the Remote INHibit indicator. Use the È and
3.
É keys to select either LIVE or LATCHING, either of which enable the RI indicator.
Then press Enter. With RI enabled, a low-true on the INH input will disable the
output of the unit. LIVE causes the output of the unit to track the state of the INH
input. LATCHING latches the output of the unit off in response to the inhibit signal.
4. Access the Output menu again and scroll through the menu. The DFI command lets
you enable the Discrete Fault Indicator. Use the É key and select ON to enable the
FLT output. Then press Enter. With the FLT output enabled, the open-collector logic
signal can be used to signal external devices when a fault condition is detected.
5. Scroll to the DFI:SOUR command to select the internal source that drives this signal.
Use the É key to select from the RQS or ESB bits, or the Operation or Questionable
status registers. Then press Enter. Status summary bits are explained in chapter 7.
To configure the DIGIO mode of the port, proceed as follows:
Action
On the Function keypad, press Output.
1.
Scroll through the Output menu by pressing q. The PORT command lets you select
2.
either the RIDFI or the DIGIO function. Press Enter when done.
3. Scroll to the DIGIO command to set and read the Digital Input/Output Port. Press
Enter Number and enter a number from 0 to 7 to program the three bits (0
programs all bits low; 7 programs all bits high). Press Enter when done.

9 - Setting the GPIB Address and Programming Language

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
programming language.
Set the GPIB address as follows:
Action
1. On the System keypad, press Address.
2. Enter the new address. For example, Press Enter Number, 7, Enter.
Front Panel Operation - 5
Address key. This menu is also used to select the
Display
*RST
PORT RIDFI
RI LIVE
RI LATCHING
DFI ON
DFI:SOUR RQS
DFI:SOUR ESB
DFI:SOUR OPER
DFI:SOUR QUES
Display
*RST
PORT DIGIO
DIGIO 5
Display
ADDRESS 5
ADDRESS 7
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