Siemens 6MD86 - Page 306

4 different control models are available:
•
Direct without feedback monitoring ( direct w. normal secur. )
•
With reservation (SBO)
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without feedback monitoring ( SBO w. normal secur. )
•
Direct with feedback monitoring ( direct w. enh. security )
•
With SBO with feedback monitoring ( SBO w. enh. security )
The next figure shows the command sources, command types, and control models.
[dwsteuer-190912-01.tif, 1, en_US]
Figure 6-1
Command Sources, Command Types and Control Models
The figure shows the control models (right) with the respective control mechanisms (center). The standard
control model for a switching command in an IEC 61850 compliant system is SBO with feedback monitoring
( SBO w. enh. security ). This control model is the default setting for newly created switching devices.
15
SBO: Select Before Operate
Control Functions
6.1 Introduction
306 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017