Transfer of the date and the programming device/PC time converted to UTC time to the
module
● Program download to CPU
● Operating mode switchover RUN/STOP
● Localization of the CPU by means of LED flashing
● Reading out CPU error information
● Reading the CPU diagnostic buffer
● Reset to factory settings
● Updating the firmware of the CPU and connected modules
You can find the SIMATIC Automation Tool on the With PRONETA (PROFINET network analysis), you analyze the PROFINET
network during commissioning. PRONETA features two core functions:
● The topology overview independently scans PROFINET and all connected components.
● The IO check is a fast test of the wiring and the module configuration of a system.
You can find PRONETA on the This section lists the new features of the CPU with firmware version V2.0.
You can find additional information in the sections of this device manual.
Table 2- 1 New functions of the CPU with firmware version 2.0 compared with firmware version V1.8
New functions Applications Customer benefits
Support for pulse generators by digital on-board I/O of the compact CPU
Pulse-width modulation
(PWM) mode
The PWM mode is used when an output module
is to control greatest possible outputs with
low power loss (heating, size).
You use pulse width modulation, for example,
to control:
• the temperature in a heating resistor
• the force of a coil in a proportional valve
and thus the position of valve from closed
to completely open
• the speed of a motor from standstill to full
speed
With pulse width modulation, a signal with defined
cycle duration and variable on-load factor is
output at the digital output. The on-load factor is
the relationship of the pulse duration to the cycle
duration. In PWM mode, you can control the onload
factor and the cycle duration.
With pulse width modulation you vary the mean
value of the output voltage. Depending on the
connected load, you can control the load current
or the power with this.
Frequency output
mode
You can implement frequencies up to 100 kHz
and thus work in ranges that cannot be
reached by a CPU with a simple digital output
with a frequency up to 100 Hz.
You can generate frequencies very precisely.
The receiver can reconstruct the information
exactly when transmission conditions are less
than ideal.
In frequency output mode, you assign a frequency
value with high frequencies more precisely

than by using period duration (PWM).
Mode
Pulse Train Output
(PTO)
Pulse Train Output is a widely used interface
for drive control.
It is used in many positioning applications,
such as for retooling axes and feed axes.
PTO (Pulse Train Output) is divided into four
different types of signals. The signal "PTO (pulse
(A) and the direction (B))", for example, consists
of 2 signals. The frequency of the pulse output
represents the speed and the number of output
pulses for the route to be traversed. The direction
output defines the traversing direction. The position
is thus preset increment-precise.
The outputs are controlled with Motion
Control via technology objects.
PTO is a simple and universal interface between
control system and drive. As a result it is supported
worldwide by many stepper and servo
drives.Data exchange is implemented between various
systems, both within the process level and
also with systems at the control and company
management level:
• To embedded systems with controllers
• To controllers with MES systems and systems
of the enterprise level (ERP, asset
systems)
• To controllers with controllers
from other manufacturers
• To intelligent sensors with controllers
Supported standard: OPC Data Access, DA.
OPC UA is a uniform standard for data communication