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SM 1231 Analog Input Module
SIMATIC S7-1200
Analog input, SM 1231
8 AI, +/-10 V, +/-5 V, +/-2.5 V
or 0-20mA/4-20 mA
12 bit+sign or (13 bit ADC)
S7-1200 DIGITAL OUTPUT 16 DO 24VDC 0.5A
SIMATIC S7-1200
Digital output SM 1222
16 DO, 24 V DC, transistor 0.5 A
Power loss, typ. 2.5 W
Rated value (DC) 24 V
for signal "0", max. 0.1 V; with 10 kOhm load
for signal "1", min. 20 V DC
SM 1221 Digital Input Module
SIMATIC S7-1200
Digital input SM 1221
16 DI, 24 V DC
Sink/Source
Rated value (DC) 24 V
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V