Why do Siemens 1200plc have the same inching axis direction?

So as to reduce the programming workload. According to the inquiry of Siemens official website, Siemens 1200PLC can control four stepping or servo motors. In order to reduce the programming workload, the inching axis is set in the same direction, which can control four stepping or servo motors. Siemens AG, founded in 1847, is a leading enterprise in the field of electronic and electrical engineering in the world.