Thank you for the new starting point, unfortunately the commands differ from each other.
A little trial and error research resulted in the following command sets: (it seems that it doesn't depend on the letter, but on the position of the numbers)
For local Readings
++addr 22
++auto 3
++read
To execute remote Commands
++auto 1
Single Sample
MODE SET 2
Repetition Sample
MODE SET 3
GET MODE USER
MODE 1
GET MODE REMOTE
MODE 2
INTEGRATION TIME 1ms -> 10s
1ms:
MOD0
20ms:
MOD1
100ms:
MOD2
1s:
MOD3
10s:
MOD4
Function
Ratio:
MO0
OHM:
MO1
AC:
MO2
DC:
MO3