How many remote I/O points are there in a Delta CNC controller? What is the wiring format?The remote I/O module can connect 32 I/O points, up to 8 modules at the same time. As a result, there are 256 I/O points in total. Remote I/O points are defined as between X256 ~ X511(Inputs) and Y256 ~ Y511 (Outputs). The modules can extend to a max of 20 meters and have switches for NPN/PNP wiring mode.