System overview
4.6 Input and output modules
Short designation
System redundancy in S7-
1500R/H
GSD file for ET 200MP
4.6
Input and output modules
The I/O modules form the interface between the controller and the process. The controller
detects the current process state via the connected sensors and actuators, and triggers the
corresponding reactions.
Function classes of input/output modules
The table below shows selected properties and technical specifications of different function
classes of input/output modules.
Function class
High Speed (HS)
High Feature (HF)
Standard (ST)
Basic (BA)
68
IM 155-5 PN HF
IM 155-5 PN ST
High Feature: X
Default:
PROFINET
Digital and analog modules provide the inputs/outputs that are re-
quired for the respective task.
The input/output modules are divided into function classes.
Special modules for extremely fast
applications
Shortest input delays
Shortest conversion times
Isochronous mode
Flexible use
Even for complex applications
Parameters for each channel
Diagnostics for each channel
Add-on functions
Medium price range
Parameter per load group / module
Diagnostics per load group / module
Inexpensive, simple modules
No parameters
No diagnostics
IM 155-5 PN BA
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PROFINET
With analog modules
•
Highest accuracy (< 0.1%)
•
High common mode voltage (e. g.
60 V DC / 30 V AC), with single-
channel electrical isolation if re-
quired
With analog modules
•
Universal modules
•
Accuracy ≥ 0.3%
•
Common-mode voltage approx.
10 V to 20 V
System Manual, 01/2023, A5E03461182-AK
IM 155-5 DP ST
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PROFIBUS
Automation system