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Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Digital Modules
Structure of the chapter
The present chapter is broken down into the following subjects:
1. Chapter overview of which modules are available and described here
2. Module overview on the most important properties of the modules
3. Sequence of steps from choosing to commissioning the digital module
4. Information that is generally valid – in other words, relating to all digital modules
(for example, parameter assignment and diagnostics)
5. Information that refers to specific modules (for example, characteristics,
diagram of connections and block diagram, technical specifications and special
characteristics of the module):
a) for digital input modules
b) for digital output modules
c) for relay output modules
d) for digital input/output modules
Additional information
Appendix A describes the structure of the parameter sets (data records 0, 1 and
128) in the system data. You must be familiar with this configuration if you want to
modify the parameters of the modules in the STEP 7 user program.
Appendix B describes the structure of the diagnostic data (data records 0 and 1) in
the system data. You must be familiar with this configuration if you want to
evaluate the diagnostic data of the modules in the STEP 7 user program.
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