Siemens SIMATIC S7-300 CPU Data: CPU 315-T-2 DP User Manual

Technical data
8.3 Integrated Inputs/Outputs for Technology
8.3.2 Technical specifications of digital inputs
Technical specifications
The digital inputs are provided for technology functions such as reference point acquisition
(reference cam). They can also be utilized for the STEP7 user program with FB
"MC_ReadPeriphery".
Table 8-4 Technical specifications of the integrated inputs for integrated technology
Technical specifications
Data for specific modules Digital inputs
Number of inputs 4
• Number of these inputs which can be used
for technological functions
4
Length of cable
• Unshielded
600 m
• Shielded
1000 m
Voltage, currents, potentials
Rated load voltage L+ 24 V DC
• Reverse battery protection
No
Number of inputs that can be triggered
simultaneously
• Horizontal assembly
Up to 40° C 4
up to 60° C 4
• Vertical assembly
Up to 40° C 4
Galvanic isolation
• Between channels and backplane bus
Yes
Permissible potential difference
• Between the different circuits
75 V DC / 60 V AC
Insulation test voltage 500 V DC
Current consumption
• From the load voltage L+ (no load)
0 mA
Status, interrupts, diagnostics
Status display green LED per channel
Interrupts No
Diagnostic functions No
Data for selecting a sensor
Input voltage
• Nominal value
24 V DC
• For signal "1"
15 V to 30 V
• For signal "0"
-3 V to 5 V
Input current
S7-300 CPU Data: CPU 315T-2 DP
Manual, 12/2005, A5E00427933-02
8-11

Siemens SIMATIC S7-300 CPU Data: CPU 315-T-2 DP Specifications

General

Brand	Siemens
Model	SIMATIC S7-300 CPU Data: CPU 315-T-2 DP
Category	Control Unit
Language	English