Siemens SIMATIC S7-300 Reference Manual page 234

Analog Modules
4.4 Setting the Measuring Method and Measuring Ranges of
Analog Input Channels
Two procedures
There are two procedures for setting the measuring method and the measuring
ranges of the analog input channels of the analog modules:
• With measuring range module and STEP 7
• By means of wiring the analog input channel and STEP 7
Which of these two methods is used for the individual analog modules depends on
the module and is described in detail in the specific module sections.
The procedure for setting the measuring method and measuring range of the
module in STEP 7 is described in Section 4.7.
The following section describes how you set the measuring method and the
measuring range by means of measuring range modules.
Setting the Measuring Method and the Measuring Ranges with Measuring Range
Modules
If the analog modules haves measuring range modules, they are supplied with the
measuring range modules plugged in.
If necessary, the measuring range modules must be replugged to change the
measuring method and the measuring range.
Note
Make sure that the measuring range modules are on the side of the analog input
module.
Before installing the analog input module, therefore, check whether the measuring
range modules have to be set to another measuring method and another
measuring range.
Possible settings for the measuring range modules
The measuring range modules can be set to the following positions: "A", "B", "C" and
"D".
Which measuring range module positions you must select for the individual
measuring methods and measuring ranges is described in detail in the specific
module section.
The settings for the various types of measurement and measuring ranges are also
printed on the analog module.
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Programmable Logic Controllers S7-300 Module Data
A5E00105505-03