OB6 Sequencer triggering a Roland TR6s via Midi. - help!

[Horder2344]

Hi All

1st post here so apologies if this has been answered Before.

I am trying to trigger my Roland TR6s step sequencer using midi out from my OB6 sequencer.

Previously when using my Take 5 - it would activate a TR6s pattern via the Take 5's sequencer but for some reason I cant  get the OB6 sequencer to do the same and trigger the TR6s. I have looked at various settings but nothing seems to get it working. I am using a midi cable from OB6 midi-out to midi-in on the TR6

Many thanks