Addressing
7.2 User-specific addressing of modules
S7-300, CPU 31xC and CPU 31x: Installation
7-6
Operating Instructions, Edition 08/2004, A5E00105492-05
7.2.4
Addressing the integrated I/Os of CPU 31xC
CPU 312C
Addresses of the integrated I/Os of this CPU:
Table 7-1
Integrated I/Os of CPU 312C
Inputs / outputs
Default addresses
Remarks
10 digital inputs
124.0 to 125.1
of which 8 Inputs are for
technological functions:
124.0 to 124.7
6 digital outputs
124.0 to 124.5
of which 2 inputs are for
technological functions:
124.0 to 124.1
All digital inputs can be assigned an
interrupt function.
Optional technological functions:
•
Counting
•
Frequency measurement
•
Pulse width modulation
CPU 313C
Addresses of the integrated I/Os of this CPU:
Table 7-2
Integrated I/Os of CPU 313C
Inputs / outputs
Default addresses
Comments
24 digital inputs
124.0 to 126.7
of which 12 inputs are for
technological functions:
124.0 to 125.0
125.4 to 125.6
16 digital outputs
124.0 to 125.7
of which 3 inputs are for
technological functions:
124.0 to 124.2
4+1 analog inputs
752 to 761
2 analog outputs
752 to 755
All digital inputs can be assigned an
interrupt function.
Optional technological functions:
•
Counting
•
Frequency measurement
•
Pulse width modulation