Siemens SIMATIC NET S7-300 User Manual

Contents
A-11
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Contents
Contents - Part A
1 Communication via Ethernet CPs in S7 Stations A-15. . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Industrial Ethernet A-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 SIMATIC S7 Communication with S7 Ethernet CPs A-17. . . . . . . . . . . . . . .
1.2.1 Types of Communication A-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2 The Communication Services of Ethernet CPs A-20. . . . . . . . . . . . . . . . . . .
1.2.3 Operation Using a Configured or Programmed Database A-22. . . . . . . . . .
1.3 PG/OP Communication via Industrial Ethernet A-23. . . . . . . . . . . . . . . . . . .
1.3.1 PG Communication with STEP 7 over Industrial Ethernet A-25. . . . . . . . . .
1.3.2 OP Operation: Connecting Operator Interface Devices via Industrial
Ethernet A-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 S7 Communication on Industrial Ethernet A-27. . . . . . . . . . . . . . . . . . . . . . . .
1.5 S5-compatible Communication (SEND/RECEIVE Interface) ) A-31. . . . . . .
1.6 FETCH/WRITE Services (Server) A-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7 Networking Stations with STEP 7 A-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.1 Network/Project Variant: One Subnet - One Project A-37. . . . . . . . . . . . . . .
1.7.2 Network/Project Variant: SIMATIC S5 and Non-SIMATIC Devices on
the Subnet A-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.3 Network/Project Variant: Two or More Subnets - One Project A-39. . . . . .
1.7.4 Network/Project Variant: One Subnet - More Than One (Sub)Project A-40
1.7.5 Network/Project Variant: Several Subnets in Several (Sub) Projects A-43.
1.7.6 Network/Project Variant: Connections between Subnets (TCP/IP) A-45. . .
2 Characteristics of the Ethernet CPs A-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Communications Processors for S7-300 A-46. . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Communications Processors for S7-400 A-47. . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Attachment Variants A-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1 Electrical Attachment A-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2 Optical Ind. Ethernet with AUI Attachment *) A-51. . . . . . . . . . . . . . . . . . . . .
2.4 Slot Rules for SIMATIC S7-300 A-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.1 Permissible Slots A-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.2 Number of SIMATIC NET CPs A-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.3 Multicomputing A-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.4 Removing / Inserting (Replacing Modules) A-54. . . . . . . . . . . . . . . . . . . . . . .
2.4.5 Note on the S7-300 CPU: Connection Resources A-54. . . . . . . . . . . . . . . . .
2.5 Slot Rules for SIMATIC S7-400 A-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.1 Permissible Slots A-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.2 Number of SIMATIC NET CPs A-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.3 Multicomputing A-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)