Description
Design
- The S7-300 enables space-saving and modular configurations. In addition to the modules, only a DIN rail is required for hooking in the modules and screwing them into place. This results in a rugged and EMC-compatible design.
- The build-as-you-go backplane bus can be expanded by simply plugging in additional modules and bus connectors. The varied range of the S7-300 can also be used for central expansions or the construction of distributed I/O structure with ET 200M; thereby producing very cost-effective spare parts handling.
Expansion options
- If the automation task requires more than 8 modules; the central controller S7-300 can be expanded using expansion units up to 32 modules can be used in the central rack and up to 8 per expansion. Interface modules (IMs) handle communication between the individual racks autonomously. Distances from each other can span up to 10 m.
- In a single-tiered configuration, this results in a maximum configuration of 256 I/O, and in multi-tiered configurations up to 1024 I/O.
- In distributed configurations with PROFIBUS DP, 65536 I/O connections are possible (up to 125 stations, such as ET 200M via IM 153). The slots are freely addressable, that is, there are no slot rules. The extensive range of S7-300 modules is also used in distributed automation solutions.
The ET 200M I/O system that has the same construction as the S7-300 can be connected via Interface modules not only to PROFIBUS but also to PROFINET.
You can also find information about SIMATIC ET200 in the Catalog ST 70:
http://www.automation.siemens.com/salesmaterial-as/catalog/en/simatic-st70-complete-english-2015.pdf
Brochure information material for downloading can be found in the Internet:
Please “Contact us” for assistance
