ZPL Data Question

I'm setting up a label that will contain a couple of bar codes. I made the sample in ZebraDesigner and exported it to a file. I understand most everything in the ZPL, but one thing I haven't figured out. The data field for one of the barcodes is this:




The text in the bar code is "16042A-0"


In the parameter of FD, why is there a >6 is the middle and what does it mean?


Also is the ";" at the beginning standard for 128 barcodes?




PS: Anyone know a good service to print and bind a copy of the ZPL manual? I guess I'm old school on reference manuals.