CHAPTER 5: SETTINGS
PRODUCT SETUP
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
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5
5.3.7.3 SNTP protocol
SETTINGS
PRODUCT SETUP
REAL TIME CLOCK
SNTP PROTOCOL
The D30 supports the Simple Network Time Protocol specified in RFC-2030. With SNTP, the D30 can obtain clock time over
an Ethernet network. The D30 acts as an SNTP client to receive time values from an SNTP/NTP server, usually a dedicated
product using a GPS receiver. UR family relays support unicast, broadcast, multicast, and anycast SNTP functionality.
The
SNTP FUNCTION
setting enables or disables the SNTP feature on the D30.
To use SNTP in unicast mode, set
SNTP SERVER IP ADDR
to the SNTP/NTP server IP address. Once this address is set and
SNTP
FUNCTION
is “Enabled,” the D30 attempts to obtain time values from the SNTP/NTP server. Since many time values are
obtained and averaged, it generally takes three to four minutes until the D30 clock is closely synchronized with the SNTP/
NTP server. It takes up to two minutes for the D30 to signal an SNTP self-test error if the server is offline.
To use SNTP in broadcast mode, set the
SNTP SERVER IP ADDR
setting to “0.0.0.0” and
SNTP FUNCTION
to “Enabled.” The D30
then listens to SNTP messages sent to the “all ones” broadcast address for the subnet. The D30 waits up to 18 minutes
(>1024 seconds) without receiving an SNTP broadcast message before signaling an SNTP self-test error.
The
SNTP UDP PORT NUMBER
is 123 for normal SNTP operation. The change takes effect when the D30 is restarted.
After enabling and waiting for the synchronization, verify that there is no SNTP Failure message in the Event Records.
5.3.7.4 Local time
SETTINGS
PRODUCT SETUP
REAL TIME CLOCK
LOCAL TIME
SNTP PROTOCOL
SNTP FUNCTION:
Disabled
Range: Enabled, Disabled
SNTP SERVER IP ADDR:
0.0.0.0
Range: standard IP address format
SNTP UDP PORT
NUMBER: 123
Range: 1 to 65535 in steps of 1
Do not set more than one protocol to the same TCP/UDP port number, as this results in unreliable operation of
those protocols.
LOCAL TIME
LOCAL TIME OFFSET
FROM UTC: 0.0 hr
Range: –24.0 to 24.0 hr in steps of 0.5
DAYLIGHT SAVINGS
TIME: Disabled
Range: Disabled, Enabled
DST START MONTH:
January
Range: January to December (all months)
DST START DAY:
Sunday
Range: Sunday to Saturday (all days of the week)
DST START DAY
INSTANCE: First
Range: First, Second, Third, Fourth, Last
DST START HOUR:
2:00
Range: 0:00 to 23:00 in steps of one hour
DST STOP MONTH:
January
Range: January to December (all months)
DST STOP DAY:
Sunday
Range: Sunday to Saturday (all days of the week)
DST STOP DAY
INSTANCE: First
Range: First, Second, Third, Fourth, Last
DST STOP HOUR:
2:00
Range: 0:00 to 23:00 in steps of one hour
Содержание D30 series
Страница 10: ...x D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 14: ...1 4 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 52: ...2 38 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL SPECIFICATIONS CHAPTER 2 PRODUCT DESCRIPTION 2 ...
Страница 534: ...5 324 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 564: ...6 30 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL PRODUCT INFORMATION CHAPTER 6 ACTUAL VALUES 6 ...
Страница 578: ...7 14 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 614: ...9 26 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL FAULT LOCATOR CHAPTER 9 THEORY OF OPERATION 9 ...
Страница 654: ...A 10 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL FLEXANALOG ITEMS APPENDIX A FLEXANALOG OPERANDS A ...
Страница 662: ...C 6 D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
Страница 670: ...iv D30 LINE DISTANCE PROTECTION SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...
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