What is the difference between SIMATIC S7-300 and S7-1500 PLCS?

Overview
SIMATIC S7-1500, released in 2012, is a follow-up product of long-term S7-300 PLC.
Although the S7-1500 series can be interchanged in many cases, they integrate the latest and future technologies into the automation system and enhance the system function through S7-300.
Through the engineering system TIA Portal (general engineering platform for all SIMATIC controllers), S7-1500 is designed for rapid market change, continuous shortening of product life cycle and increasing cost pressures.

S7-1500 and S7-300 CPU categories
The S7-300 and S7-1500 series of PLCs have many different configuration options, and the best CPU can be selected according to the application.
Both platforms offer a variety of CPU categories, including:
- Standard, suitable for typical applications.
- Compact, suitable for space and cost applications.
- Fault safety, suitable for fault safety applications.
The following table gives a basic overview of the CPU options you can choose, although there are many options that are not listed.

S7-300 CPU Categories and their Applications
The following table gives a basic overview of S7-300 CPU options you can choose although there are many more selections that are not listed.
S7-300Application
StandardCPU 312For small-scale applications with moderate requirements on the processing speed.
CPU 314For installations with medium requirements on program scope.
CPU 315-2 DPMedium to large programming memory with the ability to use SIMATIC engineering tools.
CPU 315-2 PN/DPMedium program memory and quantity framework. Integral Profinet interface with 2 ports.
CPU 317-2 DPLarge program memory and quantity framework for demanding requirements
CPU 317-2 PN/DPLarge program memory and quantity framework for demanding requirements. Integral Profinet interface with 2 ports.
CPU 319-3 PN/DPHigh command processing performance, large program memory and quantity framework for demanding applications
CompactCPU 312CFor small applications with high requirements in terms of processing power
CPU 313CFor installations with high requirements in terms of processing power and response time.
CPU 313C-2 PtPFor installations with high requirements in terms of processing power and response time. Point to point link interface.
CPU 313C-2 DPFor installations with high requirements in terms of processing power and response time. Profibus DP
CPU 314C-2 PtPFor installations with high requirements in terms of processing power and response time. Point to point link interface.
CPU 314C-2 DPFor installations with high requirements in terms of processing power and response time. Profibus DP
CPU 314C-2 PN/DPFor machines with high demands of computing power and reaction rate. Combined MPI-PROFIBUS DP-interface onboard
Fail-SafeCPU 315F-2 DPFailsafe CPU with medium to the large program memory and quantity framework with the ability to use SIMATIC Engineering tools.
CPU 315F-2 PN/DPFailsafe CPU with a medium program memory and quantity framework
CPU 317F-2 DPFailsafe CPU with a large program memory and quantity framework for demanding requirements. Profibus DP
CPU 317F-2 PN/DPFailsafe CPU with a large program memory and quantity framework for demanding requirements. Profinet interface.
CPU 319F-3 PN/DPFailsafe CPU with highest processing performance, enlarged quantity framework, and enhanced communication possibilities. Profinet Interface



SIEMENS SM335 | 6ES7 335-7HG02-0AB0SIEMENS  | 6ES7417-4HT14-0AB0SIEMENS  | 6ES7 952-1KK00-0AA0
SIEMENS SM335 | 6ES7 335-7HG01-0AB0SIEMENS  | 6ES7417-5HT06-0AB0SIEMENS  | 6ES7 952-1AL00-0AA0
SIEMENS SM332 | 6ES7 332-7ND02-0AB0SIEMENS  | 6ES7417-4HT14-0AB0SIEMENS  | 6ES7 952-1KL00-0AA0
SIEMENS SM332 | 6ES7 332-5RD00-0AB0SIEMENS  | 6ES7417-4HL04-0AB0SIEMENS  | 6ES7 952-1AP00-0AA0
SIEMENS SM331 | 6ES7 331-7NF00-0AB0SIEMENS  | 6ES7416-5HS06-0AB0SIEMENS  | 6ES7 400-1JA11-0AA0
SIEMENS SM331 | 6ES7 331-7KF02-0AB0SIEMENS  | 6ES7416-3ES06-0AB0SIEMENS  | 6ES7 673-2CC02-0YA0
SIEMENS SM331 | 6ES7 331-1KF02-0AB0SIEMENS  | 6ES7414-5HM06-0AB0SIEMENS  | 6ES7 960-1AA00-0XA0
SIEMENS SM326 | 6ES7 326-2BF41-0AB0SIEMENS  | 6ES7 972-4AA02-0XA0SIEMENS  | 6ES7 417-4HT14-0AB0
SIEMENS SM326 | 6ES7 326-2BF01-0AB0SIEMENS  | 6AU1 240-1AB00-0AA0SIEMENS  | 6ES7414-5HM06-0AB0
SIEMENS SM326 | 6ES7 326-1RF01-0AB0SIEMENS  | 6ES7 972-0AA02-0XA0SIEMENS  | 6ES7416-3ES06-0AB0
SIEMENS SM326 | 6ES7 326-1BK02-0AB0SIEMENS  | 6ES7 972-0AB01-0XA0SIEMENS  | 6ES7416-5HS06-0AB0
SIEMENS SM326 | 6ES7 326-1BK01-0AB0SIEMENS  | 6ES7 650-1AH62-5XX0SIEMENS  | 6ES7417-4HL04-0AB0
SIEMENS SM326 | 6ES7 326-1BK00-0AB0SIEMENS  | 6ES7 952-1AS00-0AA0SIEMENS  | 6ES7417-4HT14-0AB0
SIEMENS SM322 | 6ES7 322-1BP00-0AA0SIEMENS  | 6ES7 400-2JA00-0AA0SIEMENS  | 6ES7417-5HT06-0AB0
SIEMENS SM321 | 6ES7 321-1BP00-0AA0SIEMENS  | 6ES7 400-2JA10-0AA0SIEMENS SM331 | 6ES7 331-1KF02-0AB0
SIEMENS SM321 | 6ES7 321-1BP00-0AA0SIEMENS SM326 | 6ES7 326-1BK02-0AB0SIEMENS SM331 | 6ES7 331-7NF00-0AB0
SIEMENS SM322 | 6ES7 322-1BP00-0AA0SIEMENS SM326 | 6ES7 326-2BF01-0AB0SIEMENS SM331 | 6ES7 331-7KF02-0AB0
SIEMENS SM326 | 6ES7 326-2BF41-0AB0SIEMENS SM326 | 6ES7 326-1RF01-0AB0SIEMENS SM332 | 6ES7 332-7ND02-0AB0
SIEMENS SM326 | 6ES7 326-1BK00-0AB0SIEMENS SM326 | 6ES7 326-1BK01-0AB0SIEMENS SM332 | 6ES7 332-5RD00-0AB0

Sunny Guo


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