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D2000 system also supports the balanced mode. In the mode, the task of controlled and control stations is changed. That time, D2000 system receives commands and confirms them. The balanced mode may be used only when is supported by partner station. An advantage is that D2000 system sends the current status of output I/O tags (defined as ASDU 1-40) as a reply to ASDU 100 [Interrogation Command] and 101 [Counter Interrogation Command] requests. It is still suitable to configure single-shot commands as ASDU 45 - 64; they are not repeated after re-establishing the connection.
As the protocol supports the balanced mode (partly it is server), there are valid the rules of server protocols.
The output tags, which are configured as ASDU 1-40, do not switched to Transient status (i.e. they are considered as if in the configuration of I/O tag, tab Output control, the I/O tag output mode is set on Command). The record is considered to be successful if there is the connection with server at the time of record, otherwise the record is unsuccessful.
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D2000 system also supports the balanced mode. In the mode, the task of controlled and control stations is changed. That time, D2000 system receives commands and confirms them. The balanced mode may be used only when is supported by partner station. An advantage is that D2000 system sends the current status of output I/O tags (defined as ASDU 1-40) as a reply to ASDU 100 [Interrogation Command] and 101 [Counter Interrogation Command] requests. It is still suitable to configure single-shot commands as ASDU 45 - 64; they are not repeated after re-establishing the connection.
As the protocol supports the balanced mode (partly it is server), there are valid the rules of server protocols.
The output tags, which are configured as ASDU 1-40, do not switched to Transient status (i.e. they are considered as if in the configuration of I/O tag, tab Output control, the I/O tag output mode is set on Command). The record is considered to be successful if there is the connection with server at the time of record, otherwise the record is unsuccessful.
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