In case a laptop or a PC workstation is connected as a non-PRP node to one of
the PRP networks, LAN A or LAN B, it is recommended to use a redundancy box
device or an Ethernet switch with similar functionality between the PRP network
and SAN to remove additional PRP information from the Ethernet frames. In some
cases, default PC workstation adapters are not able to handle the maximum-length
Ethernet frames with the PRP trailer.
There are different alternative ways to connect a laptop or a workstation as SAN to a
PRP network.
• Via an external redundancy box (RedBox) or a switch capable of connecting to
PRP and normal networks
• By connecting the node directly to LAN A or LAN B as SAN
1.1.2
Process bus
Process bus IEC 61850-9-2 defines the transmission of Sampled Measured Values
within the substation automation system. UCA users' group created a guideline
IEC 61850-9-2 LE that defines an application profile of IEC 61850-9-2 to facilitate
implementation and enable interoperability. Process bus is used for distributing
process data from the primary circuit to all process bus compatible IEDs in the
local network in a real-time manner. The data can then be processed by any IED to
perform different protection, automation and control functions.
Transmitting measurement samples over process bus brings also higher error
detection because the signal transmission is automatically supervised. Additional
contribution to the higher availability is the possibility to use redundant Ethernet
network for transmitting SMV signals.
The SSC600 supports receiving of sampled values of analog currents and voltages.
The measured values need to be transferred as sampled values using the IEC
61850-9-2 LE protocol.
The SSC600 IEDs with process bus based applications use IEEE 1588 v2 Precision
Time Protocol (PTP) according to IEEE C37.238-2011 Power Profile for high accuracy
time synchronization. With IEEE 1588 v2, the cabling infrastructure requirement is
reduced by allowing time synchronization information to be transported over the
same Ethernet network as the data communications.
When using PTP in redundant mode, synchronization master is primarily
searched from LAN A. Synchronization master from LAN B is used only, if
no master in LAN A is detected.
1.2
PCM600 tool
Protection and Control IED Manager PCM600 offers all the necessary functionality
to work throughout all stages of the IED life cycle.
• Planning
• Engineering
• Commissioning
• Operation and disturbance handling
• Functional analysis
1MRS758850 D
Introduction
SSC600
Operation Manual
11
Summary of Contents for ABILITY SSC600
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