1MRK 511 371-UEN
Section 3
IEC 60870-5-103
Communication Protocol Manual, IEC 60870-5-103
25
Distributed busbar protection REB500
Table 33
Information in the supervisory direction
TYPE
Description
<1>
time-tagged message
<2>
time-tagged message with relative time
<5>
Identification
<6>
Time synchronization
<8>
General interrogation termination
<10>
Generic data
<11>
Generic identification
<23>
List of recorded disturbances
<26>
Ready for transmission of disturbance data
<27>
Ready for transmission of a channel
<28>
Ready for transmission of tags
<29>
Transmission of tags
<30>
Transmission of disturbance values
<31>
End of Transmission
Table 34
Information in the command direction
TYPE
Description
<6>
Time synchronization
<7>
General interrogation (polling)
<10>
Generic data
<20>
General command
<21>
Generic command
<24>
Order for disturbance data transmission
<25>
Acknowledgement for disturbance data
transmission
Timeouts
·
Protocol time-out <50 ms as defined in the IEC recommendation applies
for the protocol.
·
When a command to upload the disturbance recorder data is issued, the
data has to be transferred from the Bay Unit to the Central Unit first before
they are transferred via the IEC bus. The timeout from the instant the
upload command is is-sued to the receipt of the data varies in relation to
the length of the disturbance record. The following applies:
STP timeout <2.5 minutes per 1 second of disturbance record data (4I+4U,
2400 Hz).
·
Once the transfer of disturbance recorder data has started, the timeout
changes to:
Transfer timeout <1 Minute