User Manual

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Siemens Building Technologies SIMATIC S7 Interface to SCADA systems CK1N9827en
Landis & Staefa Division 09.03.2001
documentation and the SCADA Import file. The import files are supplied on external
data storage media.
The user imports this data into the SCADA system. This causes the variable structures,
including user addresses and unit and status text, to be generated automatically. The
SCADA system (graphics, signalling functions etc.) is engineered via the user address.
The interface for the signalling system incorporates a self-contained memory map of
the messages, faults and out-of-limit conditions for the entire CPU, and allows fast
efficient access from the signalling system. The interface for operation and monitoring
contains details of all the data points, ensuring fast updating of plant schematics.
Changes and additions to the plant are cost-effective, because the SCADA-level
engineering is retained.
The SCADA interface can be operated in parallel with the SICLIMAT X-OS
management system. It is also possible to operate it in parallel with one or more local
operator panels (SICLIMAT OP7/17) or with a central operation and monitoring system
(WinCC for building automation).
IntegrationintotheSCADAsystem
There are various methods for integrating SIMATIC communications into a SCADA
system or other PC-based system.
1. Driver for S7 communications
2. Use of the OPC client of the SCADA system and the SIMATIC OPC server
Depending on the SCADA system, the options are as follows:
• Use of the S7 communications driver provided by the SCADA system manufacturer
• Use of the OPC client of the SCADA system. In this case, a SIMATIC OPC server is
also required.
• Use of SIMATIC S7 communications. This can be integrated as an open library into
any application.
User software (e.g. plant graphics or trend display)
Driver for 1. OPC client 2.
S7 communications SIMATIC OPC server
SIMATIC communications cards
SIMATIC Net bus system
SCADA interface