Siemens SIMATIC S5 Manual page 6

Introduction
• Fundamentals of COM 266
This section provides information on how to
- make a back-up copy of the COM 266 floppy
- install COM 266 and
- use COM 266.
It also includes a full description of all COM 266 screen forms.
• Communication between the CPU and the IP 266
Defined addressing message frames are used for data interchange over the
bus interface. You must know how to use these message frames when you
want to control the IP 266 via a STEP 5 program (see Section 7).
Examples are presented in Section 9 ("STEP 5 Programming") to show you
how to link and process these message frames in STEP 5 programs.
• Start-up
This section describes the procedures for installing and starting the IP 266.
The information presented in this section is based on that presented in
Sections 5 and 6.
• STEP 5 programming (Section 9)
This section uses examples to show you how to use the message frames
discussed in Section 7.
• Troubleshooting
This section tells you what to do when problems arise. It also provides a list of
errors and information on how they can be rectified.
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IP 266
EWA 4NEB 812 6057-02