Hi Richard,
I started at the ABC in 1975 on Ampex and Studer recorders so you beat me by 6 years.
At least it wasn't the wire recorder sitting on the top floor of Broadcast house in Melbourne.
CC+channel
Type or CC id - eg Volume is CC 7
Value
So.. encoder number ...
1 = type set to CC (despite what Behringer says it stands for Continuous Controller)
2 = channel - 1 to 16 - it needs to match your transport control
3 = CC type - 0 to 127 - it needs to match your transport control
4 = On value = 0 = play
5 = Off value = 7 = stop
6 = Toggle On - press and release to start - press and release to stop
7 = increment value - not needed in you case
8 = Display On or Off
So your transport needs to have both its Play and Stop commands with the same Midi Channel and the same CC Type.
If you have a PC and a copy of MidiOx (free program) you can see the Midi messages coming in from the BC.
If MidiOx is set to display in Hex (right click on the Input screen to select Hex) you should see
for CC on channel 1 and type 16
B0 10 00
B0 10 07
B0 10 00
B0 10 07
B means CC and the following digit is the channel (0 = channel 1, 1 = channel 2 etc)
All the best
Royce