Operating Instructions
IS1 PROFIBUS 3.00 E
- Technical alterations reserved -
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PROFIBUS DP interface for IS1+
Example 2:
Automation system with redundant PROFIBUS interface
IS1+
Field station
CPU
left
CPU
right
I/O Module
PROFIBUS
DP left
I/O Data
(RAM)
I/O Data
(RAM)
Application (User program)
Logic for Redundancy
Switching
Automation system
I/O-Data (RAM)
Application
I/O-Data (RAM)
CPU left
I/O-Data (RAM)
CPU right
PROFIBUS DP Master
Module left
PROFIBUS DP Master
Module right
PROFIBUS
DP right