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S7-300 Automation System CPU Specifications: CPU 31xC and CPU 31x
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7-17
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Diagnostic data is not available for integrated I/O which is operated as standard I/O
(see also the Reference Manual 0RGXOH'DWD).
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Diagnostics options for the respective technological function are found in the
Manual 7HFKQRORJLFDO)XQFWLRQV.
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This chapter contains the specifications for the digital inputs of 31xC CPUs.
The table includes the following CPUs:
• under CPU 313C-2, the CPU 313C-2 DP and CPU 313C-2 PtP
• under CPU 314C-2, the CPU 314C-2 DP and CPU 314C-2 PtP
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Number of inputs 10 24 16 24
• number of these inputs which can
be used for technological functions
8 12 12 16
Cable length
• Unshielded For standard DIs: max. 600 m
For technological functions: no
For standard DIs: max. 1000 m
For technological function at max. counting frequency
• Shielded
M 100 M 100 M 100 50 m
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Rated load voltage L+ 24V DC
• Polarity reversal protection Yes
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