Manufacturer: Siemens
Family: S7-300
Type: Analog Input Module
Model: SM 331
MRN: 6ES7 331-7KB02-0AB0
Supply Voltage: 24 V, Reverse polarity protection
Input current:
from load voltage L+ (without load): max. 30 mA
from backplane bus 5 V DC:max. 50 mA
Power loss: 1 W
No. of analog inputs: 2; max. 20 V, max. 40 mA
Cable length: shielded max. 200m
Connector: 1 x 20-pole
Resolution: 9/12/14 bits
Isolation: 500 V DC
Dimensions mm: 40 x 125 x 120
Weight: approx. 0.2 kg