Chapter 2 – Overview2-2 RMBA-01 User’s manualThe Modbus commands and services supported by theRMBA-01 Modbus Adapter module are discussed inChapter 5. Please refer to the user documentation ofthe drive as to which commands are supported by thedrive.Figure 2-1 The construction of the Modbus link and the RMBA-01 Adaptermodule layout.Delivery check The option package for the RMBA-01 Modbus Adaptermodule contains:• RMBA-01 module• Two screws (M3×8 mm)• This manual.4321CHASSISRMBA-01MODBUS ADAPTERA-B+GNDSHLDX1WD/INITTXDRXDBUS S1TERM.GNDABB DriveABB DriveMasterstationSlavestations Module status LEDsFixing screw (GND)Terminal block for buscable connection (X1)Bus termination switch (S1)Fixing screw(CHASSIS)Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com