I have a label file in ZPL format for a ZD621. I have (3) of these printers on my network and would like my labels to show which printer it came from. I used the SGD setvar "device.friend_name" to give the printers names. I would now like to include that variable in my ZPL file and print it on the label. I can't find anything in the manual on how to pass variables like this.
I tried this code and it printed out {device.friendly_name} instead of the saved name
^XA ^FT380,270^A0N,22,21^FH^FD{device.friendly_name}^FS ^PQ1,0,1,Y^XZ