How can I make a session back to local?

[tisiman]

Hello

How can I bring my equipment opened with a session back to local mode?

For devices I opened with ibdev, I can use
int ibloc (int Device);
But for equipments opened with viOpen () or rsfsq_init (,,, &session)  ?

Thanks

Matthias

[johnoc]

Hi,

Try:

viGpibControlREN("Instrument Handle", VI_GPIB_REN_DEASSERT);

-Regards

[johnoc]

Hi Again,

There is also a function to send GPIB commands when in a VISA session.

viGpibCommand("instr handle", Buffer var, count var, ret_count var);

Where Buffer var contains the GPIB command string such as ibloc or Ibconf.

Regards-

OC

[ebalci]

I do not think you can send ibloc or ibconf as command strings to the device.
These are functions from a library.
The viGpibCommand function is probably used like this: viGpibCommand (handle, "*RST", 4, &count)

[tisiman]

Hello

I tried viGpibControlREN("Instrument Handle", VI_GPIB_REN_DEASSERT);

Surprisingly it was setting all equipment to local, not only the addressed one. Also using a next GPIB command left the equipment in local mode.
I guess that is not normal behavior. Right?

[johnoc]

Matthias,

When you used the command "viGpibControlREN("Instrument Handle", VI_GPIB_REN_DEASSERT);", is your Handle assigned to the GPIB address of a particular instrument or or to the gpib card itself like 'GPIB0' or 'DEV0'?

[johnoc]

Matthias,

To Clarify, what is your instrument descriptor when you do the viOpen() for the instrument that you are trying to toggle from remote to local?

[user2015]

Just for anyone else that comes across this;  the parameter VI_GPIB_REN_DEASSERT, de-asserts remote-enable on all instruments on the GPIB.  For a specific instrument, use VI_GPIB_REN_ADDRESS_GTL.  This is integer number 6.