Mixprogramming in PLc

[Nyi Myo Thu]

I am now using siemens s7-400H series PLC.I surprisingly found that I can use all types of programmings together.In the past we can use only one type (ladder or block or etc).Is Siemens only plc that supports this kind of mixprogramming?I thought only DCS can use mixprogramming.For instance,we can use block,digital gate,cause and effect matrix,and C script in Yokogawa DCS.