The TM PTO 4 technology module enables drives with PTI interfaces (Pulse Train Input) to be controlled. A total of 4 axes can be controlled. This means that with the axis technology objects of the SIMATIC S7-1500 and SIMATIC S7-1200 it is also possible to connect less sophisticated drives which do not have a PROFINET interface. Open-loop control and motion control take place in the CPU with the module converting the control data into digital signals.