Escient MP-100 - Manual (Page 121)

P AGE 121
F IRE B ALL -MP I NSTALLATION & U SER ’ S G UIDE - M21101-
A PPENDIX D- E XTERNAL C ONTROL P ROTOCOL
20 ESCX20010010002xx
xx = which list to get groups from, where
01 = System Music Groups
02 = User Music Groups
03 = System Radio Groups
04 = User Radio Groups
Reply Format: ESCX20010010004xxxx,
Where xxxx = total number of groups in the specified list
Once the total number of groups is known, you can ask information for a range of
groups using the 02 subcommand
20 02 Get group information
20 ESCX20020030002aa0004bbbb0004cccc
aa = which list to get groups from, where
01 = System Music Groups
02 = User Music Groups
03 = System Radio Groups
04 = User Radio Groups
bbbb = starting group number
cccc = ending group number
20 Reply Format: ESCX2002xxxGROUP1GROUP2etc…,
Where xxx = total number of groups multiplied by 2,
Each group is made up two items so
20 GROUP1 above = 0003xxxyyyyzzzzzzzz where
0003 = length of item #1 (always 3)
xxx = number of titles in the group
yyyy = length of item #2 (length of group name)
zzzzzzzz = group name (length depends on yyyy)
GROUP2, etc… have the same format as GROUP1