As an Arcanist player I have had much trouble with macros especially when it comes to my pet, unfortunately i do not have ghe answer to the "Making my pet attack problem" I do have a few useful macros that I finally figured out, tested and successfully pulled off (I am playing on PS3)

First is a healing carbuncle without having to manually target him.
/target <p>
/facetarget
/ac Physick <p>

next I will find extremely useful in dungeons, being a DoT class I have time between keeping DoT's active to observe for mobs and perform actions for Strats, but also keep aggro off our healer while tank and other dps are busy.... so i noticed that when a healer gets aggro he runs around like crazy and tries to heal himself and that is where this beauty comes in.. as I have my setup so I cant targe party members, only enemies I target the aggroed enemy and use this macro!

/ac Physick <tt>