There are a couple things to be aware of when using the ES-8 to send Program Change to a DD-500.
1. The DD-500's Program Change Map will correspond its A/B/C/ footswitch Mode. This
is the suggested Mode to be in if you are going to be doing a lot of Program
Changes, or you need to recall a DD-500 Preset above the first bank.
For more information on accessing the DD-500's footswitch modes, please checkout
the following Knowledgebase article:
http://www.bossus.com/support/knowledge_base/205745439
2. When configuring Program change on the ES-8, it's banks correlate to the DD-500's
as follows:
BANK #'s DD-500 ES-8
--------- ---------
1 0
2 1
3 2