Canon 600EX User Manual

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Wireless Settings
The color of the <D> lamp changes depending on the transmission 
status of the master unit and the slave unit. 
You can set whether or not to fire, as a wireless flash, the master unit 
that controls the slave unit. When master flash firing is set to ON, the 
master unit is fired as firing group A.
 1
Set the <N> display.
 
Press function button 4 to display 
<N>.
2
Set the master flash firing.
 
Press function button 1 <4> to 
set the master flash firing to ON or 
OFF.
g : Master flash firing ON
d : Master flash firing OFF
About the <D> Lamp
Color
Status
Description
Action
Green
Lit
Transmission 
OK
Red
Lit
Not connected
Check the channel and ID
Blinking
Too many units
Master units + slave units = 
16 units or less
Error
Turn the power off and on again
Master Flash Firing ON/OFF
 
If the transmission channels of the master unit and slave unit are 
different, the slave unit does not fire. Set both to the same number, or set 
both to “AUTO”.
 
If the wireless radio IDs of the master unit and slave unit are different, the 
slave unit does not fire.
COP
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