DMM 34401A- how to use external trigger asynchronously.

Hello,

I am using DMM 34401A (GPIB) instrument and power supply 6834 (GPIB).

The setup is:

1. DMM external trigger connected to relay

2. Configure the power supply and start ramping the voltage.

3. Configure and arm the DMM to wait for external trigger.  -> at this point when DMM is at Fetch function, it blocks the supply therefore the voltage stop ramping. It starts ramping again when DMM has finish execution (i.e. either trigger received or timed out).

My question is how can I use DMM EXT trigger asynchronously so it does not stop the power supply voltage or frequency ramping?

TIA!!