Sending Program Changes From Logic 9 To Axiom Pro 61

Hi,
I was hoping someone could help with the following problem?
When I load a song in Logic 9, and start playing the song I want Logic to send a program change message/patch change message to the Axiom Pro 61
For example the Axiom Pro 61 is on program 20 and I load a new song, when the song starts playing I want to send a message from logic to the Axiom Pro to change the program from Program 20 to say program 30 without me have to touch anything on the Axiom Pro.
I can get Logic to send messages to my other keyboards but I do not seem to be able to do this with the Axiom
Could you please advise if I have to change settings in logic or on the Axiom? The Axiom is connected to my Imac via a usb lead there are no midi leads attached.
I am stumped, please help

I Have the following gear: Axiom Pro 61, Oberheim MC1000, Korg SP250, Motu 828MK2, Motu Micro Lite midi interface 5 in / 5 out, Imac 3.06 GHz Intel COre Duo