2
\$\begingroup\$

On the front panel of my Rigol DS1052E oscilloscope, on the "TRIGGER" column of controls, the word "Local" is written alongside the bottom button, labelled "FORCE" as in this picture. What is the significance of this word, please?

\$\endgroup\$
  • 4
    \$\begingroup\$ On Keysight/Agilent/HP equipment, controlling the instrument by GPIB would lock out the front panel and that button would be used to take back front panel control. \$\endgroup\$ – The Photon Jan 5 '15 at 19:56
8
\$\begingroup\$

I found answer in datasheet for an oscilloscope I use. It says that when the scope is being remotely controlled, the front buttons are disabled. Pressing the force (local) key will reenable the front buttons. The force key forces the scope to capture even if the auto trigger conditions haven't been met, the local is a secondary button effect only for when in remote control.

Edit - To answer below question I have an Agilent 3000 series. The part I found is on page 77 of the following datasheet: http://cp.literature.agilent.com/litweb/pdf/D3000-97018.pdf

\$\endgroup\$
  • \$\begingroup\$ What scope is that? \$\endgroup\$ – Leon Heller Jan 5 '15 at 22:23
  • \$\begingroup\$ Not relevant to the Rigol, then. \$\endgroup\$ – Leon Heller Jan 7 '15 at 14:26
  • \$\begingroup\$ Both The Photon and I Wolfe have explained that the "LOCAL" refers to when the 'scope is controlled by software in a PC, using a serial link. A virtual front panel appears on the PC, and can be used to control the scope just as the real front panel does. In this case the actual controls on the 'scope are inhibited. By pressing the "LOCAL" button the situation is reversed: the actual 'scope controls work, and the virtual ones are inhibited. Further presses toggle this action. This applies to all the 'scopes mentioned: there are strong rumours that they all use Rigol's design and firmware. \$\endgroup\$ – Harry Weston Jan 7 '15 at 16:30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.