how to determine the choice of power supply?

Hello,

I use the PLC in 1200 with expand DI / DQ , which is communicated with using remote IO ET200M for connected to 8 IO module :

REMOTE I/O ET 200M (6ES7 153-4AA01-0XB0)     = 1x

 AI8 (6ES7 331-7KF02-0AB0)                                         = 4x

DI16 (6ES7 321-1BH02-0AA0)                                       = 2x

AO2 (6AG1 332-5HB01-2AB0)                                      = 1x

DO32 (6ES7 322-1BL00-0AA0)                                      = 1x

which one should I choose the power supply?

 Power supply module PS 307; 2 A; (6ES7307-1BA01-0AA0) 

Power supply module PS 307; 5 A; (6ES7307-1EA01-0AA0)?

Power supply module PS 307; 10 A; (6ES7307-1KA02-0AA0)?

Power supply module PS 305; 2 A; (6AG1305-1BA80-2AA0)?

Power supply module PS 307; 5 A; (6AG1307-1EA80-2AA0)?

And how do the calculations so as to ensure that the selected power suppy ?

As I told you yesterday:

Use the TIA selection Tool

or

calculate your losses with the datasheet and formula P=V*I:

http://lmgtfy.com/?q=6ES7+331-7KF02-0AB0+datasheet

If you cant calculate it, use the 10A power supply, it will be a lot cheaper

when you take the oversized power supply instead of calculating for hours and take the proper power supply