Technical Specifications Of Digital Inputs - Siemens SIMATIC S7-300 Manual

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