About CS1G & NT31C-ST141-V2 problem?

[a151218]

I have some problem about PLC CS1G and HMI NT31C-ST141-V2

1.If the battery of CS1G is died,the plc program if kepp or lose?
2.Can I upload HMI(NT31C-ST141-V2) program to PC?If it can upload HMI program and what kind of the cable that i need to use?
3.What dose the function about the battery of HMI(NT31C-ST141-V2)?If the HMI battery is died the HMI program if kepp or lose ?

[guolibin]

1、Must lost
2、Use NTST4.8