Technical data of CPU 31xC
6.6 Technical data of the integrated I/O
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
6-45
6.6.6 Digital inputs
Introduction
This section provides the specifications for the digital inputs of CPUs 31xC.
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
Technical data
Table 6-12 Technical data of digital inputs
Technical data
CPU 312C CPU 313C CPU 313C-2 CPU 314C-2
Module-specific data CPU 312C CPU 313C CPU 313C-2 CPU 314C-2
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 DI: Max. 600 m
For technological functions: No
For standard DI: Max. 1000 m
For technological function at Max. counting frequency
• Shielded
100 m 100 m 100 m 50 m
Voltage, currents, potentials CPU 312C CPU 313C CPU 313C-2 CPU 314C-2
Rated load voltage L+ DC 24 V
• Polarity reversal protection
Yes
Number of inputs which can be controlled
simultaneously
• Horizontal assembly
– Up to 40 °C
– up to 60 °C
10
5
24
12
16
8
24
12
• Vertical assembly
– Up to 40 °C
5
12
8
12
Electrical isolation
• Between channels and the backplane bus
Yes
• Between the channels
No
Permitted potential difference
• Between different circuits
75 VDC / 60 VAC
Insulation test voltage 500 VDC
Current consumption
• On load voltage L+ (no-load)
– Max. 70 mA Max. 70 mA Max. 70 mA
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