GE F650 Instruction Manual page 153

5.2 PRODUCT SETUP
To use SNTP in broadcast mode, set the Function setting to "BROADCAST". The F650 then listens to SNTP messages
sent to the "all ones" broadcast address for the subnet. The F650 waits up to eighteen minutes (>1024 seconds) without
receiving an SNTP broadcast message before signalling an SNTP FAIL state.
To use SNTP in anycast mode, set the Function setting to "ANYCAST". Anycast mode is designed for use with a set of
cooperating servers whose addresses are not known beforehand by the client. The F650 sends a request to a multicast
group address assigned by IANA for NTP protocol. This address is 224.0.1.1 and a group of SNTP/NTP servers listens to
it. Upon receiving a request each server sends a unicast response to the SNTP/NTP client. The F650 relay binds to the first
unicast message received from any server. Then it continues operating with SNTP/NTP server in unicast mode. Any further
responses from other SNTP/NTP servers are ignored. In unicast mode of operation the chosen time server can go offline,
in that case it takes about one minute for the F650 to signal an SNTP FAIL state and to switch again to anycast mode to try
to find another time server. In anycast mode the F650 tries to send multicast messages up to five minutes before signalling
an SNTP FAIL state.
The F650 relay does not support the multicast mode of SNTP functionality.
5.2.1.7 PROCOME
Communication settings for PROCOME protocol. For more detail information go to APPENDIX E in this manual.
PRODUCT SETUP > COMMUNICATION SETTINGS >PROCOME
Name
COMM Port
Slave Number
When NONE is selected in the comm port setting the protocol is not enabled. The com1 selection enables PROCOME for
5
the com1 (remote) serial port.
Slave Number:is the PROCOME slave number.
Baudrate and parity for COM1 must be set in the Setpoint>Communications>Serial Ports menu.
5.2.1.8 IEC 870-5-103
Communication settings for IEC 60870-5-103 protocol. For more detailed information go to 5.13 Section in this manual.
PRODUCT SETUP > COMMUNICATION SETTINGS >IEC 870-5-103
Name
COMM Port
Slave Number
Synchronization Timeout
DNP protocol is available for standard and IEC61850 models but it is not available IEC 60870-5-103 models.
If COMM Port is set to NONE, the IEC 870-5-103 communication protocol will not be available.
If the user sets a value different from 0 in the Synchronization Timeout setting, when this timer expires without receiving a
synchronization message, the Invalid bit will be set in the time stamp of a time-tagged message.
5-6
Default Value Step
NONE N/A
0 1
Default Value Step
NONE N/A
1 1
30 min 1
F650 Digital Bay Controller
5 SETTINGS
Range
[NONE - COM1]
[0 : 254]
Range
[NONE - COM1]
[0 : 254]
[0 : 1440]
GEK-106310AB