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FS-8700-83 Gamewell Page 16 of 24
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6.6 Advanced Map Descriptor Examples
Example 1 : Filtering Data
You can direct the driver to filter the incoming messages so that data arrays are only updated for particular states. For example an incoming
messge which reports a device in Ckt 1 to be in a FAULT state (Status:FAULT) will use the map descriptor ‘Ckt1_data03’ to store the data and the
array DA_FAULTS1 will be updated. If however, the message reported an ALARM state (Status:ALARM) then the array DA_ALRMS1 would have
been updated.
In fact, because the examples below provide a map descriptor where the data type is ‘Any’, each incoming message would update two data
arrays. The DA_Status1 array would be updated by every single message and the other arrays would be updated depending on the state being
reported in the message.
Map_Descriptors
Map_Descriptor_Name, Data_Array_Name , Data_Array_Offset, Function, node_name, ckt , Length , Data_Type , Clear_on_Reset
Ckt1_data01 , DA_STATUS1 , 000 , passive , panel1 , 1 , 100 , Any , Yes
Ckt1_data02 , DA_AlARMS1 , 000 , passive , panel1 , 1 , 100 , Alarms , Yes
Ckt1_data03 , DA_FAULTS1 , 000 , passive , panel1 , 1 , 100 , Faults , Yes
Ckt1_data04 , DA_EVENTS1 , 000 , passive , panel1 , 1 , 100 , Events , Yes
Ckt1_data05 , DA_BUS1 , 000 , passive , panel1 , 1 , 100 , Bus , Yes
Ckt1_data06 , DA_COMM1 , 000 , passive , panel1 , 1 , 100 , Comm , Yes
Ckt1_data07 , DA_CONTROL1 , 000 , passive , panel1 , 1 , 100 , Control , Yes
Ckt1_data08 , DA_ACK1 , 000 , passive , panel1 , 1 , 100 , Ack , Yes
Ckt1_data09 , DA_SIGSIL1 , 000 , passive , panel1 , 1 , 100 , Signal Silence , Yes
Ckt1_data10 , DA_TROUBLES1 , 000 , passive , panel1 , 1 , 100 , Troubles , Yes
By using specific data types, the driver will
only update the associated data arrays when
the messages report a state that matches the
data type.
You would need another set of these map
descriptors for any other circuit you are
monitoring.