The S7-400 is especially suitable for data-intensive tasks in the process industry. High processing speeds and deterministic response times guarantee short machine cycle times on highspeed machines in the manufacturing industry.
The S7-400 is used preferably to coordinate overall plants and to control lower-level communications lines with slave stations; this is guaranteed by the high communication power and the integral interfaces.
The power of the S7-400 is scalable thanks to a graded range of CPUs; the capacity for I/O is almost unlimited.
S7-400 Module Data (english).pdf
S7-400 Installation (english).pdf
S7-400 System Operating Manual (english).pdf