Task; Overview - Siemens SITOP PSU8600 Manual

1 Task

Task
1
1.1

Overview

Introduction
A power failure/breakdown in the automation network usually has disastrous con-
sequences. Without suitable power supply the network simply fails without saving
the data and terminating sensitive software. This has the effect that system data
gets lost, operating systems and software can get damaged. In addition, the plant
may not be in a failsafe state, which may endanger people and the machinery.
The SITOP PSU8600 power supply offers a solution for this. Apart from the basic
device with one or several outputs, there are also various additional modules for
the expansion of the number of outputs (CNX8600) and for increasing the buffer
time (BUF8600). With the help of the SITOP BUF8600 buffer modules, operation of
the connected automation components can be guaranteed for a limited period of
time during the power failure/breakdown. Thus the automation network remains
functional. All nodes can reach the SITOP PSU8600 via its two Profinet ports in the
network.
Overview of the automation task
A software controller is operated on Panel PCs and takes on the control of the au-
tomation plant. Plant-specific data is illustrated via an active visualization through
the operating system on the panel PC. A SITOP PSU8600 will secure the power
supply with a buffer module (maximum number per basic device is two).
Only a limited buffer time is available via the buffer module due to its capacity. This
is why the state of the SITOP PSU8600 needs to be monitored. If there is a power
failure, the IPC and the controller have to be terminated in a controlled way in order
to prevent damages.
The figure below provides an overview of the automation task.
Figure 1-1
400V
Shutdown IPCs in the SITOP PSU8600 Buffer Mode
Entry ID: 109737962, V1.2,
24V
10/2017
Software
Visualization
Controller
Windows,
SIMATIC IPC
WinCC
4