Siemens CPU 315-2 DP Hardware And Installation Guide

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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
5-14 A5E00105492-03
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The sample below clearly shows the maximum permitted ambient air temperature
at a specific power loss for different cabinet designs.
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The following device configuration should be installed in a cabinet:
• Central unit, 150 W
• Expansion modules, each with 150 W
• Load power supply under full load, 200 W
This results in a total power loss of 650 W.
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The diagram in the figure below shows guide values for the permitted ambient air
temperature of a cabinet with the dimensions 600 mm x 600 mm x 2,000 mm,
depending on power loss. these values only apply if you maintain the specified
installation and clearance dimensions for racks (rails).

Siemens CPU 315-2 DP Specifications

General

Memory	64 KB
Power Supply	24 V DC
Order Number	6ES7 315-2AG10-0AB0
Number of DP Masters	1
Number of DP Slaves	124
Load Memory	64 KB
Number of Timers	256
Number of Counters	256
Data Memory	64 KB
Operating Temperature	0 to 60 °C
Integrated Interfaces	MPI, DP
Digital Outputs	Not integrated
Analog Inputs	Not integrated
Analog Outputs	Not integrated
Programming Languages	LAD, FBD, STL
Digital Inputs	Not integrated
Weight	660 g