SICAM SAS
  
Constantly increasing demands are being placed on reliable management of supply systems for electricity, water, gas and district heating. The call for cost effectiveness, minimized downtimes and increased environmental awareness is setting new standards of efficiency, reliability and availability in these systems. Central monitoring and control of systems distributed over extensive geographical areas, combined with fast reaction to possible malfunctions, are important preconditions for cost reducing system management. Your automation system must acquire and evaluate a wide range of detailed information in real time, even in normal operation. In the event of malfunction, you will require additional information to assist you in rapid fault diagnosis.

By virtue of its open type interfaces and its wide-ranging communication facilities, the SICAM SAS Substation Control and Protection System permits connection of bay control units equipped with the following interfaces: RS422/RS485 or fibre optics. Integration of the efficient state-of-the-art SIPROTEC 4 generation of protection and control units is especially simple, as attention has been paid to uniformity of design in their development.

The SICAM SAS Substation Control and Protection System provides you with a system solution for efficient implementation of these functions. SICAM SAS is designed as an Open System to provide simple interfaces based on international standards for the integration of different bay control unit types or new transmission protocols, as well as interfaces for the implementation of project-specific automation functions. Thus, the SICAM SAS Substation Control and Protection System can be integrated in a wide range of configurations for the implementation of distributed control systems. The SICAM SC Substation Controller can be regarded as the 'heart' of the SICAM SAS Substation Control and Protection System. It communicates with higher level system control centers and, on the process side, with the various bay control units of your system. The SICAM SC combines the specific functions of a remote terminal unit with the versatility of a programmable automation system for physically distributed process automation.

This efficient system solution is based on the SIMATIC 400 automation system, with its numerous communication facilities. This futuristic platform has been supplemented by modules to meet the new more stringent requirements of telecontrol technology, and has been matched to the principal functions of substation control and protection. Connection of bay control units enables you to access extensive detailed information about your system acquired in decentralized form, in addition to the centrally gathered information of SICAM SC. The new generation of bay control units such as the SIPROTEC 4 range permits, in addition to a wide range of protective functions, substation control and protection functions on the bay level. In the SICAM SAS Substation Control and Protection System, all information of the equipment can be evaluated, combined logically and relayed via standard communication links to higher-order system control centers.

The SICAM WinCC process visualization system with individually configurable graphical displays of your plant forms the interface with the system management personnel. The workstation monitors enable the operator to supervise the process and intervene with control functions. He can access not only current data, such as control states, status indications or measured values, but can also evaluate archived data in curve or tabular form, and thus obtain a comprehensive picture of the system state as a whole. In addition, all process events and switching operations are logged in consecutive order in SICAM SAS. Right at the stage of acquisition of the process signals by the SICAM SC modules or the bay control units connected, they are real-time stamped.

  

Typical configuration of a SICAM SAS

Tasks
SICAM SAS performs the following tasks:

  • Telecommunication
  • Monitoring
  • Remote control/control with switchgear interlock
  • Serial connection of protection/bay devices
  • Automation
  • Editing and displaying process information by means of SICAM WinCC
  • Archiving and logging by means of SICAM WinCC.

A typical SICAM SAS consists of the following components:

  • SICAM SC substation controller
  • Link to higher-level control center
  • Link to bay level
  • Configuration programming device/PC with SICAM plusTOOLS
  • Operator control and process monitoring by means of SICAM WinCC.

 

Telecontrol interfaces
The SICAM substation controller can be expanded by maximally 3 independent interfaces for data transmission to max. three higher-level control centers. The telecontrol interfaces can be operated with the transmission protocols

  • IEC 60870-5-101
  • IEC 60870-5-104
  • SINAUT 8-FW
  • DNP V3.0
  • TG800 (RS232; for IEC 60870-5-101 as RS422/RS485 and X21 are supported)


Bay Device Interfaces
Different options are available for connecting decentralize information by way of bay devices (FAE 6MB525, 7SJ600, SIMEAS T):

  • Maximally 4 MCP(4) assemblies, consisting of respectively 1 MCP communication processor and 4 XF6 expansion boards with FO interfaces for maximally 96 bay devices.
  • Maximally 1 MCP(1) assembly (consisting of 1 MCP communication processor and 1 XC2 expansion board) and 1 MCP(0) assembly (consisting of 1 MPC communication processor) for maximally 96 by devices via maximally 6 RS485 lines.

Combinations of the above-mentioned examples are possible. However, the total number of 10,000 information points should not be exceeded. The bay device interfaces are operated by means of the IEC 60870-5-103 and the DNP V3.0 transmission protocols.