Siemens Simatic M7-400 Reference Manual page 217

Analog Modules
Structure of the Chapter
The present chapter is broken down into the following subjects:
1. Overview containing the modules that are available here and a description
2. Information that is generally available – in other words, affects all analog
modules (such as parameter assignment and diagnostics)
3. 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 analog input modules
b) For analog output modules
STEP 7 Blocks for Analog Functions
You can use blocks FC 100 to FC 111 to read and output analog values in STEP 7.
You will find the FCs in the standard library of STEP 7 in the subdirectory called
"S5-S7 Converting Blocks" (for a description refer to the STEP 7 online help system
for the FCs).
Additional Information
Appendix A describes the structure of the parameter records (data records 0 and 1)
in the system data. You must be familiar with this structure 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, 1) in the
system data. You must be familiar with this structure if you want to evaluate the
diagnostic data of the modules in the STEP 7 user program.
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
5
5-1