Hello,

there could be up to 62 slaves with the extended addressing mode.

But the CP has 16 byte input and 16 byte output.
For each slave there are 4 Bits reserved in the 16 byte I/O.

In your case:
4DI/4DO (3RK1402-3CE00-0AA2)

data bit D0->IN1/OUT1
data bit D1->IN2/OUT2
data bit D2->IN3/OUT3
data bit D3->IN4/OUT4

4AI (3RK1207-1BQ44-0AA3)
in each ASI telegramm are transfered 4 Bits of the 4AI.
So it needs much more than one cycle until all AI are available in the CPU.

All information could be found in the manual

I hope this helps a little bit