Advertisement
Setting for General commands
(iv)
Using General command frame of the IEC 60870-5-103 standard, the remote control is able
to execute relay applications. As receiving a general command frame, the IED is controlled
by the Data ID of the signal list.
When the "General command" item is selected on the GR-TIEMS, the setting screen is
displayed.
Figure 11.5-9 "General command" setting screen
The frame of Type ID=20 (General command) and Command ACK/NACK can be set in this
screen. In one command of General command, the INF, FUN and DCO must be set. The
Command ACK/NACK is for detail setting and must not be set usually. (If do not check the
Ext check box, the setting of Command ACK/NACK is disabled and the Command ACK and
Command NACK respond according to the default response.)
The maximum 32 frames of General command and Command ACK/NACK can be set. The
information number of the frame is determined by the INF setting. The most left item "No."
is only serial number and can be skipped.
Common address is linked with the address setting† of the IED.
†For more information, see
1118).
In this setting screen, if a Data ID except "0" is set to "Sig Off" and "Sig On", the command
at INF setting value is provided and Command ACK or Command NACK is sent back when
receiving the command from upper station. If both "Sig Off" and "Sig On" have "0", the fixed
length NACK is always sent back then and the command is not provided.
Though the command is provided; however, Command NACK is always sent back and no
control is performed in the following cases:
(1):
When receiving any General command from the upper station before Command
ACK/NACK is sending back from the relay.
(2):
Under Monitor direction block condition ("IECBLK" setting is "blocked".) when
receiving General command.
(3):
When receiving an incorrect value of DCO of General command, that is DCO is neither
"1" nor "2".
Appendix: IEC 60870-5-103 interoperability
- 959 -
6F2T0207 (0.01)
(→page
GRE200 (5,6)
Advertisement
