I am trying to interface a Teco SG2-20VR-D (user manual here:http://www.bb-elec.com/bb-elec/literature/manuals/SG2PLR_UserManual_0707m.pdfand modbus manual here:http://www.bb-elec.com/bb-elec/literature/manuals/SG2_V-typeModbusProtocol_0807.pdf) with Mach3. Here is what I've done...