Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 - Manual (Page 142)

Technical data of CPU 31xC
6.6 Technical data of the integrated I/O
CPU 31xC and CPU 31x, Technical data
6-32
Manual, Edition 08/2004, A5E00105475-05
CPU 313C/314C-2: Pin-out of the integrated AI/AO and DI (connector X11)
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Standard Positioning
AI (Ch0)
AI (Ch1)
AI (Ch2)
AI (Ch3)
PT 100 (Ch4)
AO (Ch0)
AO (Ch1)
Control
output 0
X11
PEWx+0
PEWx+2
PEWx+4
PEWx+6
PEWx+8
PAW x+0
PAW x+2
Standard DI 21
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X
X
X
X
X
X
X
X
DI+2.1
DI+2.2
DI+2.3
DI+2.4
DI+2.5
DI+2.6
DI+2.7
DI+2.0
1)
V
I
C
V
I
C
V
I
C
V
I
C
V
A
V
A
4M
M
ANA
Interrupt input
X
X
X
X
X
X
X
X
1) CPU 314C-2 only
Block diagram of integrated digital/analog I/O of CPUs 313C/314C-2
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AI0
4M
AI
AI/A0 8DI
AI
AI
AI
A0
A0
AI
CH0
CH1
CH2
CH3
CH0
CH1
PT100
U
U
I
I
CPU interface
AI2
AI1
A
V
A
V
A
V
AI3
A
V
AI4
R
AO0
AO1
M
ANA
V
A
V
A
Controller