Siemens Simatic S7-300 CPU 31xC Series User Manual

Installing
5.4 Labeling the modules
S7-300, CPU 31xC and CPU 31x: Installation
5-10 Operating Instructions, Edition 08/2004, A5E00105492-05
Slot numbers Clipping the slot numbers onto the modules
1. Hold the corresponding slot number in front of the relevant module.
2. Insert the pin into the opening on the module (1).
3. Press the slot number into the module (2). The slot number breaks off from the wheel.
The figure below illustrates this procedure. The slot number labels are included with the
CPU.
CPU
PS
1
2

Siemens Simatic S7-300 CPU 31xC Series Specifications

General

Series	S7-300 CPU 31xC
Power Supply	24 V DC
Communication Interfaces	MPI, PROFIBUS DP
Programming Languages	LAD, STL, FBD, SCL
Operating Temperature	0°C to +60°C
Memory	48 KB - 512 KB
Dimensions	40 x 125 x 130 mm (varies by model)