how to priview a program in puma400L

[ming035]

I operate a puma 400L, it's fanuc 21i-tb controler. I don't know how to preview a program , maybe it is graph check. But when I turn to MEM, and press GRAPH, can't find exec and head

[meelian]

u must set the #9000 parameter, u can review the program graph

[ming035]

how to set the #9000 paramter