ProSoft Technology PTQ-104S - Manual (Page 137)

48TPTQ-104S Rev 1 ♦ 47TQuantum Platform Reference
46TIEC 60870-5-104 Server for Quantum 12TUser Manual
IV DB Bit - This feature allows the application to set the invalid (IV) quality bit of
the protocol for all the monitored ASDU types supported. If you enable this
feature, the processor can determine the individual IV quality bit status of each
point you configured.
The following parameters must be configured in order to use this feature:
To disable this feature, set the IV Fail Count parameter to 0. If used, the Cyclic
Set IV Time parameter must be at least 3 times larger than the IV Check Delay
Time.
The Cyclic Set IV Time parameter must be set to determine how frequently the IV
Checks will be performed. If the IV bit is ON for a number of times given by the IV
Fail Count parameter the module will consider the point as invalid.
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March 4, 2013