Technologies Computer Driver Instruction Manual

FS-8700-41 Simplex 4100 Driver Manual Page 17 of 58
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4.5.5. Map Descriptor Example 1. - Read Point Status
This Map Descriptor can be used to poll for the status of a particular point. When the response is obtained the driver sets the value
of one Data Array element to a number indicating the point’s status. The values are described in Appendix A.4. You need one such
Map Descriptor for every point whose status you wish to poll. Notes in Appendix A.13 provide more information Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_name Length Scan_Interval, sim4100_func sim4100_card, sim4100_point, sim4100_sub
A1, DA_AI3, 0, RDBC, Node_A, 1, 5, Clist, 1, 2, 3
The Data extracted from the device is placed in this driver independent data array.
This identifier must be the same as the node name used to identify the port connected to the Simplex device being described in this map Descriptor.
Ignored for the Simplex protocol unless the sim4100_func=ackal l, clearall,
Simplex Device: Card
Perform the 'Computer List Status' Function to (in this case) read the current point status of the point specified by card-point-sub. This function returns fire, supervisory, trouble.... data. The format of the returned data is described in Appendix A
The data is written into the array starting at this position. A value of zero is equivalent to the first position.
Simplex Device: Point
Simplex Device: Sub
-
Point