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Siemens SIMATIC S7-300 Module data Technical Data

Siemens SIMATIC S7-300 Module data
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CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
Glossary-1
Glossary
Accumulator
Accumulators represent CPU register and are used as buffer memory for download, transfer,
comparison, calculation and conversion operations.
Address
An address is the identifier of a specific address or address area. Examples: Input I 12.1;
Flag Word MW 25; Data Block DB 3.
Analog module
Analog modules convert process values (e.g. temperature) into digital values which can be
processing in the CPU, or they convert digital values into analog manipulated variables.
Application
An application is a program that runs directly on the MS-DOS / Windows operating system.
Applications on the PG include, for example, the STEP 5 basic package, GRAPH 5 and
others.
See User program
ASIC
ASIC is the acronym for Application Specific Integrated Circuits.
PROFINET ASICs are components with a wide range of functions for the development of
your own devices. They implement the requirements of the PROFINET standard in a circuit
and allow extremely high packing densities and performance.
Because PROFINET is an open standard, SIMATIC NET offers PROFINET ASICs for the
development of your old devices under the name ERTEC .
Backplane bus
The backplane bus is a serial data bus. It supplies power to the modules and is also used by
the modules to communicate with each other. Bus connectors interconnect the modules.

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Siemens SIMATIC S7-300 Module data Specifications

General IconGeneral
SeriesS7-300
ManufacturerSiemens
Protection ClassIP20
SystemSIMATIC S7-300
Digital InputsVaries by module
Digital OutputsVaries by module
Analog InputsVaries by module
Analog OutputsVaries by module
Central Processing UnitVaries by CPU model
Supply Voltage24V DC or 120/230V AC
CPU TypeVaries (e.g., CPU 312, CPU 315, etc.)
MemoryVaries by CPU model
Communication InterfacesMPI, PROFIBUS
Programming LanguagesLAD, FBD, STL, SCL, GRAPH
Operating Temperature0°C to 60°C
Storage Temperature-40°C to 70°C
Relative Humidity10% to 95% (non-condensing)

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