Siemens M7-400, S7-400 CPUs for M7-400

11-1
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
CPUs for M7-400
In this Chapter
This chapter describes the CPUs of the M7-400 automation computer:
•CPU 486-3,
•CPU 488-3,
The CPUs differ essentially in their clock frequencies. You will find a comparison of
their performance features in Table 11-1.
The tables in Sections 11.1 and 11.2 give an overview of the performance features
and technical specifications of the CPUs.
Following this overview, the modules are described in detail.
Chapter Overview
Section Description Page
11.1 Performance Features 11-2
11.2 Technical Specifications 11-3
11.3 Function Elements 11-4
11.4 The BIOS Setup 11-16
11.5 I/O Addresses, Main Memory and Interrupt Assignments 11-40
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