User Manual
CM2N8558en
17.11.2000
Siemens Building Technologies
Landis & Staefa Division
8
5
58
PLD6.010...200 PLD6.../Rack
VISONIK
®
DCS Data and
Communication Server
PLD6...
Data and Communication Servers (DCS) are used as central stations in building
automation and control systems (BACS). The DCSs represent superposed
system components that, by applying DDC technique, enable customer-specific
solutions of all building automation and control tasks.
Use
A DCS's scope of application comprises a multitude of tasks and functions in building
automation and control systems such as:
• Communication with process stations on the subsystem level
• Real-time processing of acquired process data
• Continuous storage of selected process values (temperatures, setpoints, etc.)
• Monitoring of technical equipment
• Issuing of higher commands (e.g., peak demand limiting program, backup power and
power restoration)
• Reporting of plant faults
• Issuing alarms for internal or external service organisations
• Issuing distinct clear text messages based on plant events
• Reactions triggered by different causes:
Time, date, process value changes, and hours of operation (maintenance)
• Simultaneous execution of multiple BACS tasks (multitasking)
8558P02
8558P01