Pcs 7 Project - Siemens SIMATIC PCS 7 System Manual

2.9

PCS 7 project

STEP 7
STEP 7 is the core component for configuring the SIMATIC PCS 7 process control system
with the engineering system.
STEP 7 supports the various tasks involved in creating a project with the following project
views:
● Component view (HW Config)
● Process object view
● Technological perspective
The hardware that you need in a SIMATIC project, such as automation systems,
communication components, and process I/O, is stored in an electronic catalog. You
configure this hardware and assign the hardware parameters with HW Config.
You can protect function blocks (FBs) and functions (FCs) against unauthorized access
using the S7 Block Privacy application. You can no longer edit protected blocks in STEP 7.
Only the interfaces of the blocks are then visible.
If you protect blocks with S7 Block Privacy, you may encounter longer download and startup
times.
Continuous Function Chart (CFC)
The CFC editor is the tool for graphical configuration and commissioning. You use the CFC
editor to place and interconnect instances of function block types and assign their
parameters. In addition, the CFC editor is the tool for loading user programs.
The CFC editor supports the following types of standardized software modules:
● Function block type
● Process tag type
● Control module type
Sequential Function Chart (SFC)
The SFC editor is the tool for the graphical configuration and commissioning of sequential
control systems for batch production processes. You use a sequential control system to
control and process basic automation functions created in CFC by means of operating mode
and system status changes. Depending on the subsequent use, you create the sequential
control systems either as a SFC chart or SFC type.
SFC chart
You use an SFC chart to implement a single-use sequential control system that controls
multiple sub-areas of a production plant. Each SFC plan contains standardized inputs and
outputs for status information and for control by the user program or the user. You can place
and interconnect the SFC chart in the CFC as a block.
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 09/2014, A5E32631667-AB
Introduction to CPU 410-5H
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