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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x

A5E00105492-03

6-9

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After installation, you should assign a slot number to each module. This makes it

easier to assign the modules in the configuration table in 67(3. The table below

shows the slot number assignment.

Table 6-4 Slot numbers for S7 modules

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1 Power supply (PS) –

2 CPU –

3 Interface module (IM) To the right of the CPU

4 1st signal module To the right of the CPU or IM

5 2nd signal module –

6 3rd signal module –

7 4th signal module –

8 5th signal module –

9 6th signal module –

10 7th signal module –

11 8th signal module –

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