Well I am stuck and not sure where to go. 

I have a DL06 plc talking to Mach3 via serial modbus.  It seems to work just fine with a few exceptions in Turn, but when I enable serial modbus plugin, I can't seem to toggle outputs on the plc anymore or see plc inputs change.   Do I need a brain for this?  Not a brain brain but a Brain program, that reads the modbus address and ports that over to the input,  along with a brain output that takes a mach3 output and ports that over to the modbus via the brain.

Arnie

Arnie, others can correct me if I'm wrong, but the tick box for Enable modbus plugin is for a specific brand. I think it's for the Homann modbus. You can still use a plc, just don't enable that particular setting.

Whacko

Arnie,

Did you get this one figured out?  I am having the same issue, except mine WAS working, and now I can't get it going.  Very frustrating.

Roger

as far as I can tell you have to use a brain after you configure the inputs, I haven't had any time to work on this, but the go to guy is poppabear.

Confirmed;
The tick box for Enable modbus plugin is for the Homann modbus via serial.  It should say than directly.  . It kills the TCP functionality.  Also, it appears Brains must be used to map Mach3 Input/output to TCP modbus.  In the later version Mach3 i.e. 3.043.066.  The ports & pins mapping does not seem to work.