System （版本3.5.15.0或更
Development System 可以
system. Changing to a
System （版本3.5.14.0或更
Development System （版本3
typeclass : __SYSTEM
Plc’). SystemAddress = 1 ¶ Tracked by system
system does not allow
can use the System.get_messages() and System [...] .5.2.0 generate_runtime_system
