there are midi interfaces with multiple cv/gate outputs on them... cv.ocd outside the rack or hex inverter mutant brain (which is the same but a module), for example - there are quite a few more! you would be able to send multiple channels of midi from Logic -> modular this way - might be an idea to read a few manuals and watch a few videos...
I don't have a es9, but I do have an es8 - which doesn't have midi - the idea behind them is to not use midi - but cv direct from the DAW - you would use a plugin in Logic - for example Expert Sleepers Silent Way - and generate pitch/modulation/triggers/gates directly in Logic and then send them to the outputs of the ES9 - the midi implementation, afik, in es9 is to control features of the es9 - such as an internal mixer
hope this helps
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities