Siemens siprotec 7SA522 User Manual page 79

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DIGSI 4
CFC
Passwords
Interlocking
Command Process-
ing Times
Event Recording
7SA522 Manual
C53000-G1176-C119-2
The status of a primary switch can be read out on the display using %5($.(56:,7&+
→ 'LVSOD\ (Figure 4-10).
%5($.(56:,7&+

!'LVSOD\
!&RQWURO
Determining primary switch status using the operator control panel
Figure 4-10
Control operations can be carried out using the DIGSI
operating interface of the device on site, or communicate with the SIPROTEC
using a modem and the service interface.
®
DIGSI 4 must operate in the Online mode for this function.
• Select &RQWURO in the Navigation window and double click on %UHDNHU 
6ZLWFKHV in the data window.
In the dialogue window that follows, all relevant primary switching equipment is dis-
played in a table with the present status.
• Enter the intended switching direction in the Scheduled column. Answer the ques-
tion with <HV.
The password is requested, the interlocking conditions are checked, and the com-
mand is issued.
Note:
The control option of DIGSI
diagnostic purposes.
Using the graphically supported design tool CFC for logic functions in DIGSI
mation can be logically combined. Command outputs can be derived from the output
of logic functions. The link of the output of the CFC functions to the respective device
outputs is determined in the configuration matrix.
Only authorized personnel can perform switching operations. Switching operations
are protected by passwords.
Command outputs may be subject to interlocking checks, which can be configured in-
dividually and graphically using the CFC logic too. Standard interlocking, such as
ground switch closed status indication, may be already contained in the basic settings
of certain device types when delivered from the factory.
Details about the command output time, checkback indication monitoring time, etc.,
are entered within the framework of the settings.
All switching operations are recorded in the message list with date and time.

²! 
²! 
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4 is typically used during commissioning, and for test and
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SIPROTEC
',63/$< 

!%UHDNHU 23(1
'LVF6ZLW &/26
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4 Tool. Connect a PC to the
4 Devices
®
device
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4, infor-
4-15