Be aware that PS2 engines do not operate under DCC. Only PS3 engines do. Your engine is a 3 volt PS2 engine.
Also, the DCS Commander, while a decent choice for operating MTH HO engines under DCS, is a poor choice for doing so with O gauge PS2/PS3 engines.
If you plan to operate using DCS, I suggest that you purchase a copy of The DCS O Gauge Companion 2nd Edition.
Evedrything you need to know about DCS and a whole lot more is all in MTH’s “The DCS O Gauge Companion 2nd Edition", available for purchase as an eBook or a printed book at MTH's web store!