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two flashes using Plus X trigger, only one flash fires - using same channel

Started Mar 3, 2015 | Discussions thread
Lemming51
Lemming51 Forum Pro • Posts: 15,278
600EX's PC terminal is an "inny" only, not an "outty"

JoeZ94 wrote:

I've got a Yongnuo YN-565EX attached to a Plus X on a stand using a pc sync cord

and I've got a Speedlight 600EX shoe mounted on my Canon t4i attached through a pc sync cord to a plus X

when i press the "test button" on the Plus X attached to the 600ex, both flash's fire

However when i take a photo from my t4i, only the flash 600ex attached on my camera fires and not the Yongnuo YN-565EX. Both the Plus X are on the same channel

this is really frustrating and i've got no idea whats happening, why isn't the two Plus X talking to each other when i take a picture !

Please help

The 600EX PC terminal is designed to fire the 600EX from the triggering device, camera or other.  The 600EX cannot trigger another speedlite or the Plus X from its PC sync terminal.

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