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Andy Neil
01/06/06 08:22
Read: 6815 times

#106709 - Vending: "Executive" or "Protocol-A"
The "Executive" (or "Exec"; aka "Protocol-A") protocol was developed as a proprietary standard by Mars (MEI) for communications with payment systems (coin-mechs, etc) in vending machines.
It is now something of a de facto standard, but is the specification now published anywhere? Or do I have to contact MEI?

Unfortunately, this is one of those cases where Googling just gets swamped in references to vending machines, coin-mechs, etc, that support "Exec" and I haven't yet found a proper specification! :-(

Yes, there are brief mentions at and - but no spec.

Looks like a call to MEI, then?

List of 5 messages in thread
Vending: "Executive" or "Protocol-A"      Andy Neil      01/06/06 08:22      
   vending exec      Bruce Revor      01/06/06 17:33      
      MEI 20 mA Protocol-A Specification      Andy Neil      01/26/06 03:49      
   Did you Try Here      Neil Kurzman      01/06/06 22:29      
      Yes!      Andy Neil      01/07/06 03:08      

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