Siemens S5-135U/155U appendix Centralized and Distributed Configuration, Then

Models: S5-135U/155U

1 560
Download 560 pages 1.68 Kb
Page 21
Image 21

Centralized and Distributed Configuration of a Programmable Controller

2.2Centralized and Distributed Configuration

You can install a PLC in centralized or distributed configuration according to your application.

IF ...

you wish to position the modules as closely as possible to the CC and can accept longer cable runs to the process,

you wish to position the I/O modules as closely as possible to the process and can accept longer cable runs to the CC,

THEN ...

choose the centralized configuration

choose the distributed configuration

With the centralized configuration, you can install the CC and EUs in the same cabinet or in adjacent cabinets. Data transmission is parallel. Shown in the following figure is a centralized configuration.

EU

EU

CC

Load Power Supply

Figure 2-1 Centralized Configuration

System Manual

2-3

C79000-G8576-C199-06

Page 21
Image 21
Siemens S5-135U/155U appendix Centralized and Distributed Configuration, Then