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S7-300 CPU 31x -- Product information -- Technical data
How are the communication resources assigned in the S7-300?
How do you load the 3D, CAx and ePLAN data for the SIMATIC products?
How many modules can you slot on an S7-300 mounting rail?
How can you control the ALM (Active Line Module) of a CU320 (with DriveCLIQ) with the SIMATIC program?
Where can you find an update to use the SINAMICS with newer firmware in S7 Technology V4.1?
Which modules can you use when implementing software redundancy?
Which organization blocks do you have to load into the CPU to ensure that the CPU does not go into the "STOP" status when a remote I/O fails?
How do you find out further technical information about your module?
Why can't I see the values which are transmitted to an unlinked destination DB with SFC84, even though SFC84 is not indicating an error (RET_VAL = W#16#000?
How does the CPU 31x/31xC/C7 react when an MMC fault occurs during the save procedure?
What is the effect of the STEP 7 function "Copy RAM to ROM"?
Why does the SFC 54 "RD_DPARM" not work with the new S7-300 CPU with MMC?
How do you copy the user program from the load memory into the main memory without PG with a S7-300 CPU with MC slot?
How can you backup your program from the load memory?
Which communication services supported by the CPUs with integrated PROFINET interface and by the WinAC RTX via Industrial Ethernet?
Implementation of SIMATIC modules of the product families S7-300, S7-400, ET 200M, ET 200S ET, 200iSP and TDC in environments with high concentrations of corrosive gas
At which ambient temperature and at which air pressure can you operate a SIMATIC S7-300?
What can you do when the power requirement of the modules in the subrack exceeds the power supply provided by the CPU on the backplane bus?
Where do you find certificates and approvals for SIMATIC S7 in the Internet?
Where can you find images, graphics, symbols and screenshots for SIMATIC industrial automation systems?
Which SIMATIC S7 components and which drives support clock-synchronicity functionality?
At which ambient temperature and at which air pressure can you operate a SIMATIC S7-300?
Part number:

Description
You can operate the S7-300 at the following ambient temperatures:

  • in a vertical position from 0°C to 40°C
  • in a horizontal position from 0°C to 60°C


Fig. 01

The aforementioned temperature values are based on an air pressure of 1080 hPa to 795 hPa, which corresponds to 2000 m above sea level. Under these conditions SIMATIC S7 controllers can be operated with natural convection.

At a lower air pressure (and thus lower air density), when operating at greater heights, the cooling performance of natural convection drops. If you use an S7-300 in an environment other than mentioned, please contact Technical Support for alternative configuration options at: http://www.siemens.com/automation/support-request

Note
More detailed information on setting up the S7-300 is available in the operating instructions "CPU 31xC and CPU 31x: Setting Up", in the "Configuration" chapter, in Entry ID: 13008499 .

 Entry ID:24478544   Date:2010-03-05 
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