Siemens S7-300 - Slot Numbers for S7 Modules

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S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
A5E00203919-01
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 –