Model 7002Switch System Instruction Manual - Advanced Test ...

Front Panel Operation4.12.2 GPIBThe GPIB menu is used for the following operations:• Check and/or change the address of the IEEE-488 bus.• Display the status byte of the IEEE-488 bus.of the status byte are reset to zero, it will be displayed as follows:SHOW STATUS BYTEEVA = 0 QSB = 0 MAV = 0 ESB = 0MSS = 0 OSB = 0Perform the following steps to display the GPIB menu:1. Press MENU to display the MAIN MENU.2. Use the cursor keys ( and ) to place the cursor onGPIB, and press ENTER to display the following menu:GPIB SETUP MENUADDRESS STATUSWhen finished viewing the status byte, press either ENTERor EXIT. The instrument will return to the GPIB SETUPMENU.NOTEWhen finished with GPIB, use EXIT toback out of the menu structure.ADDRESS — Use this menu item to check and/or changethe IEEE-488 address. At the factory the address is set to 7,but it can be changed to any value from 0 to 30. To select AD-DRESS, place the cursor on ADDRESS and press ENTER.If the address is currently set to 7, the following message willbe displayed:ADDRESS = 07 (0-30)1. To retain the displayed address, press ENTER or EXIT.The instrument will return to the GPIB SETUP MENU.2. To change the address, simply key in a valid value (0 to30) and press ENTER. The instrument will return to theGPIB SETUP MENU.NOTEThere is an IEEE-488 address switchlocated on the rear panel of the unit. Thisswitch is used to set the IEEE-488 addresson specially built units that do not havefront panel controls and is explained inparagraph 5.3. For units that do have frontpanel controls, the switch is nonfunctional.STATUS ⎯ Use this menu item to display the IEEE-488status byte. Refer to Section 5 (IEEE-488 Reference) for informationon the status byte. To select STATUS, place thecursor on STATUS and press ENTER. If for example, all bits4.12.3 DIGITAL-I/OThe DIGITAL-I/O menu is used to configure the Model7002’s digital I/O port (refer to paragraph 4.15). Perform thefollowing operations through this menu:• Check and/or change the OUTPUT-STATUS (on or off)of the four digital output channels.• Check and/or change the OUTPUT-POLARITY of thedigital output port. Polarity can be active-high (ON =+5V) or active-low (ON = 0V).• Check the INPUT-STATUS (on or off) of the single digitalinput channel.NOTEThe digital output port can be used as asink in order to control external circuits(i.e., low power relay drive) that use up to30V. See paragraph 4.15.1 for details.Perform the following steps to display the DIGITAL-I/OMENU:1. Press MENU to display the MAIN MENU.2. Use the cursor keys ( and ) to place the cursor onDIGITAL-I/O and press ENTER to access the followingmenu:DIGITAL-I/O MENUOUTPUT-STATUS OUTPUT-POLARITYINPUT-STATUS4-33