CTI Products RCD Advanced Client-Server - Manual (Page 104)

MCNConfig Program: Master-Sub Comparator Configuration
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Multi-Level Inheritance – Sub-Sub Comparators
The Master – Sub Comparator feature allows you to pass bits down from a master device to a sub device
as shown above. You can create multi-level systems as shown below:
Master Comparator
Sub Comparator
Sub-Sub Comparator
You can only pass down native bits, not inherited bits. In the example above:
•
The Sub Comparator could pass its own Vote bit down to the Sub-Sub Comparator.
•
It could not pass down the Master Vote bit that it inherited from the Master Comparator.
You might need a Master Vote and Sub Vote bit in the Sub-Sub Comparator as shown below:
Sub-Sub
Comparator
Bits Master
Vote
Sub
Vote
Steer Rx Dis Vote Fail
To accomplish this, set up the following parameters:
•
Master Vote Bit Nudge = 6
•
Master Comparator Sub Devices: Sub Comparator & Sub-Sub Comparator
(This passes the Master Vote bit directly down to both sub-levels)
•
Sub Comparator Vote Bit Nudge = 5
•
Sub Comparator Sub Device: Sub-Sub Comparator
(This passes the Sub Vote bit down.)
Since the Master Vote bit is nudged 6 bits, it will be nudged the same amount in each of its SubDevices.
Thus, the bits for the Sub Comparator Display Table for this example should be set up as follows:
Sub-
Comparator
Bits Master
Vote
Don't
Care
Steer Rx Dis Vote Fail
When you fill out the States in this table, just make the Don't Care bit a "-" in all states.
In this example, we were able to pass the Master Vote bit down two levels, but it was not passed through
the Sub Comparator. It was passed directly from the Master comparator to the Sub Sub Comparator.
"Native" bits from Sub-Sub Comparator CIB
Inherited from Master
Inherited from Sub Comparator
"Native" bits from Sub-Sub Comparator CIB
Inherited from Master
Dummy bit because Master Vote Nudge = 6