Siemens ST PCS 7 用户手册

 

Siemens ST PCS 7 · November 2007

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Globalization and incessantly increasing competitive pressures 

are forcing companies to continuously increase productivity and 

shorten product time to market. To this end, it is necessary to 

continuously optimize engineering procedures and the process, 

and to simultaneously consider new industrial requirements and 

directives.
Today, many systems and plants must be expanded and mod-

ernized to ensure that companies can continue to provide prod-

ucts meeting market requirements. However, since the installed 

basis of hardware, application software and know-how of the op-

erating and maintenance engineers represents an enormous 

value, the safeguarding of investments for companies operating 

the plants is always assigned a high priority during all modern-

ization plans. 
Experience has shown that the success of migration is largely 

determined by providing a technical solution that optimally 

matches the customer requirements and the customer’s plant. 

Minimization of the technical and financial risks together with 

safeguarding of investments for as long a period as possible are 

always fundamental aspects. The different lifecycles of the vari-

ous system components must also be considered, which cur-

rently vary from 5 years for PC-based workstations, 15 years for 

controllers, up to 25 years or more for input/output components 

and wiring. Therefore Siemens does not consider its task to sim-

ply be the complete replacement of an existing system, but in 

close collaboration together with customers and their system in-

tegrators of an individual, future-oriented solution based on the 

state-of-the-art SIMATIC PCS 7 process control system - always 

under the directives:

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system innovation

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to the specific conditions of the plant

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according to production requirements

HMI/batch
- Replaces old HMI
- Replaces batch 
  system

Controller/network
- Replaces controller
- Gateway to
  SIMATIC PCS 7 

I/O field connection
- Further use of I/Os
- Field connection  
  elements for SIMATIC 
  PCS 7

Strategy
- Plant/product future
- Planned modernization 
  (revamping)

Cost reduction
- Maintenance budget
- Investment budget

Time-to-Market
- Production time
- Available downtime

Innovation pressure
- Improved process 
  control
- IT integration
- Advanced process 
  control & 
  asset management

Lifecycle phases
- Maintenance & 
  modernization
- Expansion & 
  improvement
- Renewal/replacement 
  with state-of-the-art 
  technology

© Siemens AG 2007