Siemens SIMOCODE pro System Manual page 423

Analog module connection example
I
IN
Fig. 13-15: Analog module connection example
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03
2 x max.
+
(0/4 mA - 20 mA)
-
M
*)
IN1+ IN1-
IN2+ IN2-
30 33 31 34
IN1+ IN1- IN2+ IN2-
Ready
OUT+ OUT-
36 37
*)
+
R
L
I (0/4 A - 20 mA)
OUT
-
R < 500 Ohm
L
Mounting, wiring, interfaces
L+
(potential-free current source, e.g. isolation amplifier)
PE *) Cable shielding recommended for up to 30 m
and for outside of the switchgear cabinet.
Cable shielding necessary for over 30 m
13-23