Addressing
S7-300 Programmable Controller Hardware and Installation
7-6 A5E00105492-01
slot
Number
2
4
CPU
SM (Analog modules)
Inputs
Channel0: Address256
Channe1: Address 258
:
:
Outputs
Channel0: Address256
Channel1: Address258
1
PS
:
:
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
Figure 7-4 I/O addresses of an analog module in Slot 4
7.5 Addressing the integrated I/O of the CPU
CPU 312 IFM
The following addresses are assigned to the integrated I/O of CPU 312 IFM:
Table 7-1 Integrated I/O of CPU 312 IFM
Inputs/Outputs Addresses Remarks
10 digital inputs 124.0 to 125.1
of those are 4 Inputs for
integrated functions:
124.6 to 125.1
Optional utilization of Inputs for
integrated functions:
• Counting
• Frequency measurement
• Interrupt input
Refer to the Manual
Integrated functions
6 digital outputs 124.0 to 124.5 –
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