The parameters Address of device 1 to Address of device 6 can be used to give an address to each
device. Set a unique and unambiguous address for each device.
•
Default setting (_:5131:101) Local device is device = 1
With the Local device is device parameter, you set the index (number) of your device in the topology.
A maximum of 6 devices can be present in 1 topology.
APPLICATION EXAMPLE
You have a topology with 2 devices.
For example, in DIGSI 5, select the parameter setting Address of device 1 with the parameter value 101
for device 1 and the parameter setting Address of device 2 with the parameter value 102 for device 2.
Then, use the Local device is device parameter to set the index of the local device.
The addresses must be configured identically for all devices involved in the constellation. A functional protec-
tion communication requires that you also assign the same index in all devices of a constellation for a device
with a unique address.
•
Default setting (_:5131:122) Lowest appearing bit rate = 64 kBit/s
The Lowest appearing bit rate parameter is used to set the lowest bit rate occurring in the device
group. Set the lowest value in each device with a three-end constellation with 2 fiber-optic connections (2
MBit/s) and a 64 kBit/s connection with the lowest value (64 kBit/s). This value determines the maximum
signals and measured values within a constellation.
Apart from the default value, you can also set the following bit rates:
•
128 kBit/s
•
512 kBit/s
•
2048 kBit/s
NOTE
If you use optical fibers for the connection between the devices, set the value to 2048 kBit/s.
•
Default setting (_:5131:125) Number of devices = 6
With the Number of devices parameter, you set the number of devices actually connected in the device
combination in one topology. This parameter is set by default to the maximum number of devices permitted
for the appropriate constellation.
The Number of devices parameter depends on the configuration of the protection interface. When config-
uring the protection interface, select the maximum number of devices present in the final phase of the system
in the Select constellation text box. If the current expansion phase of the system contains fewer devices at
this time, set the number of devices actually in the device combination using the Number of devices
parameter. In this procedure, all settings, for example, routing, you made for your constellation are retained.
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
3.5.2.4 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
3.5.2.6
System Functions
3.5 Protection Communication
SIPROTEC 5, High-Voltage Bay Controller, Manual 111
C53000-G5040-C015-9, Edition 11.2017
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