András Murányi wrote:

Dear Sirs,

I just have never been successful with sysex in Pd and I'm asking for your kind advice.
Attached is an example for a long sysex message which goes out on [midiout] (linux only, afaik).
The problems I have:
- sysex gets fragmented (also when nothing is sent out meanwhile by other objects). It is always properly terminated with '247' but the content is often truncated. Is this a bug/feature...? What is your best recommendation knowing that my patch is full of sysex outs (+envelopes on some of them!)

in the patch you posted, the message you send to [midiout] is [240,67,16,73,8,$2,19,$1,247(
, which Pd takes as 9 separate messages because of the comma in between each item.
Probably [240 67 16 73 8 $2 19 $1 247( would work better.