If you wish to operate, for example, a 3-device protection communication as a 2-device protection communi-
cation, you must set the Number of devices parameter = 2.
If you expand the system later, change the Number of devices parameter to the number of devices
actually present.
You can find more detailed information regarding the configuration of the protection interface in chapter
3.5.3.4 Initialization and Configuration of the Protection Interface in DIGSI 5 .
NOTE
Set the same number of devices used in all devices that are part of the constellation.
Selecting the Connection
•
Default setting (_:105) Connection via = fiber optic
The Connection via parameter is used to set the bit rate required for the protection interface. Different
discrete values can be entered depending on the means of communication (see following table).
Table 3-12 Means of Communication
Means of Communication See Setting Value Bit Rate
Fiber-optic direct connection Figure 3-4
1 to
Figure 3-4
4
fiber optic
2 MBit/s
CC-XG-512 communication converter Figure 3-4
5
CCXG 512 kBit/s
512 kBit/s
CC-XG-128 communication converter Figure 3-4
5
CCXG 128 kBit/s
128 kBit/s
CC-XG-64 communication converter Figure 3-4
5
CCXG 64 kBit/s
64 kBit/s
Repeater 512 communication converter Figure 3-4
8
repeater 512 kBit/s
512 kBit/s
CC-CC-128 Communication converter Figure 3-4
7
CCPW 128 kBit/s
128 kBit/s
CC-2M-512 Communication converter Figure 3-4
6
CC2M 512 kBit/s
512 kBit/s
Multiplexer with C37.94 interface Figure 3-4
9
C37.94 1 * 64 kBit/s
C37.94 2 * 64 kBit/s
C37.94 8 * 64 kBit/s
64 kBit/s
128 kBit/s
512 kBit/s
Other (freely adjustable bit rates for a direct
connection for special applications)
64 kBit/s
128 kBit/s
512 kBit/s
2048 kBit/s
64 kBit/s
128 kBit/s
512 kBit/s
2048 kBit/s
Setting Notes for the Protection Interface
Parameter: Max. Error Rate/h
•
Default setting (_:5161:105) Max. error rate per hour = 1.0 %
The Max. error rate per hour parameter allows you to receive an error message on the number of
faults per hour. An indication is then generated.
3.5.3.6
3.5.3.7
System Functions
3.5 Protection Communication
SIPROTEC 5, Overcurrent Protection, Manual 125
C53000-G5040-C017-8, Edition 07.2017
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