ABB RELION 670 Series Technical Manual page 1140

Section 18
Station communication
• MUDATA: Indicates when sample sequence needs to be realigned. that is the application soon
needs to be restarted. The signal is raised to 2 s before the application is restarted.
• SYNCH: Indicates that the time quality of the hardware is out of the set value from parameter
synchAccLevel ( 1 μs , 4 μs or unspecified ) and the parameter AppSynch is set to Synch . In case
AppSynch is set to NoSynch the SYNCH output will never go high.
of
• SMPLLOST: Indicates that more than one sample has been lost/been marked invalid/
overflow/ been marked failed, and the sample has thereafter been substituted. When
SMPLLOST is high, protection is blocked.
• MUSYNCH: Indicates that the MU connected is not synchronized. Received from quality flag in
datastream. No IED setting affects this signal.
• TESTMODE: Indicates that the MU connected is in
datastream. No IED setting affects this signal.
Timeout
TSYNCERR Indicates that there is some timeout on any configured time source or the time quality
is worse than specified in SynchAccLevel. The timeout is individually specified per time source
(PPS, IRIG-B, SNTP etc.) See section
Blocking condition
Blocking of protection functions is indicated by (SAMPLOST is high) or (MUSYNCH is high and
AppSynch is set to Synch ) or (SYNCH is high)
Application synch is not required for differential protection based on ECHO mode. A missing PPS
however will lead to a drift between MU and IED. Therefore protection functions in this case will be
blocked.
18.5.7 Technical data
Table 847: IEC 61850-9-2LE communication protocol
Functions
Protocol
Communication speed for the IEDs
18.6 LON communication protocol
18.6.1 Functionality
An optical network can be used within the substation automation system. This enables
communication with the IED through the LON bus from the operator's workplace, from the control
center and also from other terminals.
LON communication protocol is specified in LonTalkProtocol Specification Version 3 from Echelon
Corporation and is designed for communication in control networks. These networks are
characterized by high speed for data transfer, short messages (few bytes), peer-to-peer
communication, multiple communication media, low maintenance, multivendor equipment, and
low support costs. LonTalk supports the needs of applications that cover a range of requirements.
1134
TestMode . Received from quality flag in
"Time synchronization"
Value
IEC 61850-9-2LE
100BASE-FX
1MRK 502 066-UUS B
SEMOD172233-1 v1
SEMOD172236-2 v2
IP14420-1 v1
M11924-3 v4
Technical manual