Siemens SIMATIC S5 Manual page 80

Technical Description
Digital inputs (front connector X7)
Rated input voltage
Number of inputs per axis
Isolated
Input voltage
Input current
You can use two-wire BEROS with a supply voltage of 22 V...33 V.
Digital outputs (front connector X7)
Rated supply voltage L+
Number of outputs per axis
isolated
Range of supply voltage
Switching current
Max. total load of the outputs at 60"C
Power supply
Supply voltage from system bus
Current consumption
supply voltage L+ (front connector)
Rated value
Ripple UPP
permitted range (including ripple)
Special voltage U, (applied if necessary via X7, ground via
Rated value
Permitted range
Current consumption without load
from L+ (24 V)
from U,(15 V)
3 - 6
4
no
signal O -33 V...6V6V
signal 1 13V.,.33V
1
no
20 v to 30 v
max. 120 mA, short-circuit proof
10070
3.6V
20 v to 30 v
15V
5to 30 v
contact)