IOC: Keithley 2400 Multimeter able to operate with user script

[ChrisM-S]

As a scientist I would like to be able to easily set up the Keithley 2400 in a mode which allows me to use my own custom python script for Thermometry control. This would need the default keithley settings to be changed to a quiescent mode, rather than scanning at the same time as my script is running and upsetting things.

[kjwoodsISIS]

@ChrisM-S - who is this for?

[ChrisM-S]

This is something to address the issue we had on Friday afternoon (on POLARIS) where the Keithley IOC was over-controlling and interfering with the users python scripting control for the same experiment. The setup for the experiment had run successfully previously and involved work from us and the SE Electronics group. I believe that it was having updated with the standard Keithly IOC on the last IBEX rollout which introduced (or re-introduced) the scanning into the db record for the IOC.

This is essentially a configuration management problem which we need to address (there is a lost time report on this one hence why I've framed this as a story from the scientist/user).

[kjwoodsISIS]

@Tom-Willemsen - is this ticket still required?

[ChrisM-S]

As long as it's not going to happen again there is no need for this ticket. For me, it would be important that (on POLARIS at least) there is a configuration for the Electro-cell experiment they can and know to select which ensures passive operation from the IOC. It might also be necessary for a quiescent mode check box on the OPI? Perhaps the user script should only communicate through a block and this needs more thought?

Does anyone else see how we prevent this happening again. a) on POLARIS? b) on other instruments?

[Tom-Willemsen]

Yes, I do see this experiment happening again (specifically, on the 5th March!)

[kjwoodsISIS]

Put ticket back on the backlog until we are ready to do it.