Yongnuo YN-622C trigger question.... Help!

I have 3 of these, and trying to use one on cam as a trigger, and one on my 580EX2 (front side) and another on a 270EX2 (in back)

What do I need to have the one on my camera set on to do multi flash triggering, to get a percentage set for the 2 flashes?

Guessing I may have the GP Set incorrect? Everything is on C1, multi flash turned on via my 7D2's menu.

I thought the whole setup was rather intuitive. Setup up the hardware where/how you want it. Got to the FLASH CONTROL on your camera and make the choices for what you want to do. DO NOT ENABLE the 7D2's flash mastering. Just mount a 622 and use the camera's menu.

If you are on now, ask specific questions. I will have my stuff setup to help you in a minute.

Are your flash units in SLAVE mode? They should NOT be.

Bassat wrote in post #17811413
I thought the whole setup was rather intuitive. Setup up the hardware where/how you want it. Got to the FLASH CONTROL on your camera and make the choices for what you want to do. DO NOT ENABLE the 7D2's flash mastering. Just mount a 622 and use the camera's menu.

If you are on now, ask specific questions. I will have my stuff setup to help you in a minute.

Thanks, I have had this working; but for some reason.... can't get it going now. Here's what I'm looking at via my camera. The 2 triggers on the flashes are set on CH1, and I had tried setting them for GP1 and GP2 respectively. I wasn't sure where the camera trigger needed to be set. I tried ETTL mode as well.

Bassat wrote in post #17811426
Are your flash units in SLAVE mode? They should NOT be.

The 580EX2 is in M, and the 270EX2 in ON (there is only SLAVE and ON physically on that flash).

turn off MASTER FLASH OUTPUT (the thing next to CH1)
try the test button
your camera is set up properly

Your 580 can be in MANUAL for 2 reasons. The camera mounted 622 told it to because you have M selected on camera. Or the 580 itself is in manual mode. Dismount 580 from 622. Make sure it is in default ETTL when stand-alone.

What problem are you having? Nothing firing? Only one? Wrong power?

270 in ON is correct. What group is the 270 set to? Is it firing?

Bassat wrote in post #17811444
turn off MASTER FLASH OUTPUT (the thing next to CH1)
try the test button
your camera is set up properly

It only fires one flash. 580 is on CHA 270 is soon CHB. The transmitter only fires the CHB flash (270). No matter what I have it set on.

Make sure flashes are FULLY PUSHED into the 622s. I have problems with that sometimes.

Camera is set to A:B, right?

I have mine set up the same way you do.
Master is MANUAL
580 GP A
270 GP B
Everything on channel 1

Everything fires when I hit TEST/and when I release the shutter.

Bassat wrote in post #17811458
Camera is set to A:B, right?

Yup, I checked to make sure they were seated good.

I switched the triggers on the flashes, and the 270 is working; but the 580 is not. So it isn't the triggers.

Mount 580 directly on camera. Make sure it is set to FLASH FIRES.

CRAP! I can't find it in my menus. Somewhere you can disable flash output, like if you just want to use the AF beam. Make sure that is not turned on IN THE 580 itself,

DUH. First line on my 6D. Flash Firing: Enable/disable. Make sure the 580 is set to ENABLE. Put it back on the 622.