Siemens Simatic S7-300 - Page 13

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S7-300, Installation and Hardware
EW A 4NEB 710 6078-02a
Figures
1-1 Components
of an S7-300 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1 Horizontal and V ertical Arrangements of an S7-300 2-2. . . . . . . . . . . . . . . . . . .
2-2 Clearances Applying to a Standard S7-300 Configuration on One Rack 2-3.
2-3 Clearances Applying to a Standard S7-300 Configuration on Several
Racks 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Module Arrangement for an S7-300 Programmable Controller Mounted
on One Rack 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5 The Module Arrangement in a Four-Rack S7-300 Configuration 2-9. . . . . . . .
3-1 Slots of the S7-300 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Address Area of the CPU 315-2 DP (Inputs) 3-5. . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Address Area of the CPU 315-2 DP (Outputs) 3-6. . . . . . . . . . . . . . . . . . . . . . .
3-4 Addresses of the Inputs and Outputs of Digital Modules 3-7. . . . . . . . . . . . . . .
3-5 Addresses of the Inputs and Outputs of the Digital Module in Slot 4 3-8. . . . .
3-6 Addresses of the Inputs and Outputs of the Analog Module in Slot 4 3-9. . . .
4-1 Signal Modules Operated on a Grounded Incoming Supply 4-10. . . . . . . . . . . .
4-2 Signal Modules Powered from the PS 307 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 S7-300 with CPUs 313/314/314 IFM/315/315-2 DP/316 with Grounded
Reference Potential 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 S7-300 with CPUs 313/314/314 IFM/315/315-2 DP/316 with Grounded
Reference Potential 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Simplified Schematic of a Configuration with Isolated Modules 4-15. . . . . . . . .
4-6 Schematic of the Electrical Configuration with the Non-Isolated Analog
Input/Output Module SM 334; AI 4/AO 2 8/8 Bit 4-16. . . . . . . . . . . . . . . . . . . . .
4-7 Relay EMERGENCY OFF Contact in the Output Circuit 4-21. . . . . . . . . . . . . . .
4-8 Suppressor Circuit with DC-Operated Coils with Diodes and Zener
Diodes 4-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-9 Suppressor Circuit with AC-Operated Coils 4-22. . . . . . . . . . . . . . . . . . . . . . . . . .
4-10 Lightning Protection Zones of a Building 4-25. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-11 Example for Interconnecting Networked S7-300s 4-32. . . . . . . . . . . . . . . . . . . . .
5-1 Fixing Holes of the 2 m/6.56 ft. Rail 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Connecting the Protective Grounding Conductor to the Rail 5-4. . . . . . . . . . . .
5-3 Plugging Bus Connectors into Modules 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4 Hook the CPU onto the Rail and Swing it Down into Place 5-7. . . . . . . . . . . . .
5-5 Hook the Signal Module onto the Rail and Swing it Down into Place 5-7. . . .
5-6 Bolting a Module to the Rail 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7 Inserting the Key in the CPU 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-8 Attaching Slot Numbers to the Modules 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Wiring the PS 307 Power Supply Module and the CPU Using a Power
Connector 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Voltage Selector Switch on the PS 307 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3 Bringing the Front Connector into the Wiring Position 6-7. . . . . . . . . . . . . . . . .
6-4 Signal Module Assembly with Shield Connecting Element 6-11. . . . . . . . . . . . .
6-5 Attaching Shielded 2-Wire Cables to a Shield Connecting Element 6-12. . . . .
7-1 Terminating Resistor on the Bus Connector 7-9. . . . . . . . . . . . . . . . . . . . . . . . . .
7-2 Terminating Resistor on the RS 485 Repeater 7-9. . . . . . . . . . . . . . . . . . . . . . .
7-3 Connecting a T erminating Resistor in an MPI Subnet 7-10. . . . . . . . . . . . . . . . .
7-4 Example of an MPI Subnet 7-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-5 Example of a PROFIBUS Subnet 7-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-6 Example of a Configuration with the CPU 315-2 DP in an MPI and
PROFIBUS Subnet 7-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-7 Maximum Cable Length between T wo RS 485 Repeaters 7-15. . . . . . . . . . . . .
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