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Siemens Simatic S7-300 CPU 31xC Series User Manual

Siemens Simatic S7-300 CPU 31xC Series
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Installing
5.4 Labeling the modules
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
5-9
5.4 Labeling the modules
Slot numbers Assignment
You should assign a slot number to each one of the mounted modules, thus making it easier
to assign the modules in the configuration table in STEP 7. The table below shows the slot
number assignment.
Table 5-4 Slot numbers for S7 modules
Slot number Module Comment
1 Power supply (PS)
2 CPU
3 Interface module (IM) to the right of the CPU
4 1. Signal module (SM) to the right of the CPU or IM
5 2. Signal module (SM)
6 3. Signal module (SM)
7 4. Signal module (SM)
8 5. Signal module (SM)
9 6. Signal module (SM)
10 7. Signal module (SM)
11 8. Signal module (SM)

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Siemens Simatic S7-300 CPU 31xC Series Specifications

General IconGeneral
SeriesS7-300 CPU 31xC
Power Supply24 V DC
Communication InterfacesMPI, PROFIBUS DP
Programming LanguagesLAD, STL, FBD, SCL
Operating Temperature0°C to +60°C
Memory48 KB - 512 KB
Dimensions40 x 125 x 130 mm (varies by model)

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