FieldServer FS-8700-41 - Manual (Page 29)

FS-8700-41 Simplex 4100 Driver Manual Page 29 of 48
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Appendix A.6.2. Using Clist to Write-Through and Store point status from Unsolicited Messages
This function is only available for panel version 1.05 and above.
The ‘Clist’ Map Descriptors can
Read a point’s status
Write to a point when a Write-Through is activated
Store the point status when an ‘Xpoint’ unsolicited message is received from the panel.
A Write-Through occurs when a Data Array value that is normally updated by a read (Rdbc) Map Descriptor is updated by some other driver or by using the
Ruinet application. The updated value is written through the Rdbc Map Descriptor to the panel. The value is written once only each time that the Data Array
element is updated except when the value is updated by the response to the read or if the point status is updated when an unsolicited message is received
from the panel.
Ensure that the point is not a read only point and the Panel’s access level has been set appropriately.
When an unsolicited message is received from the panel it would normally be stored using a Map Descriptor with the ‘Xpoint’ function. (See section Appendix
A.4.3) However, if polling for the status of that point using a ‘Clist’ Map Descriptor with ‘Store_Unsolicited’ set to yes then omit the ‘Xpoint’ Map Descriptor as
the ‘Clist’ Map Descriptor can be used to store the point status when it is updated with an unsolicited message. If both Map Descriptor’s are defined then the
result will be unpredictable.
A write command can be sent to a Simplex panel in one of two formats:
SET c-p-s ON/OFF (default)
SET c-p-s value
Use the sim4100_WriteThru parameter in the CSV to change to the 2nd format.
Even if writing to an analog pseudo point, format 1 is suitable because enabling the point forces it to take its intrinsic value. On setting the point off it’s value is
set to zero.
Column Title Function
Legal
Values
sim4100_WriteThru*
Only appropriate when the sim4100_func=clist.
Controls the write through behavior of the clist function. Onoff,
value
Store_Unsolicited*
Control the ability of ‘CLIST’ map descriptors to be used to store data from unsolicited messages. Refer also to
Appendix A.6.2
Yes, No