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Appendix A.16. Advanced Map Descriptor Example 7 - Acknowledge a specific point
Theackallfunctioncanbeusedtoackallpointso rallpointsthatareinaparticularstate.Whata boutifyouwishtosendanack messageforasinglepoint.OneMapDescriptorisr equiredforeachcpscombinationyourequirespec ificacknowledgementsfor.
Thedriverchecksthearraylocationcorresponding totheMapDescriptor.Ifthevalueisnonzerothe nanackmessageissent.The
valueisusedtodeterminewhatkindofackissent .Asthefunctioniswrbx,themessageisonlysent whenthevalueisupdated.
Bit0: | F | FireAlarmPanel |
Bit1: | P | Priority2alarmstate |
Bit2: | T | TroubleState |
Bit3: | S | SupervisoryState |
Bit4: | U | UtilityMonitor |
Bit5: | C | ControlState |
Bit6: | D | DisableTroubleState |
Bit7: | A | PrimaryPoint |
Map_Descriptor_Name, | Data_Array_Name, | Data_Array_Offset, | Function, | Node_Name, | Length, | Scan_Interval | sim4100_Func | Sim4100_Card, | Sim4100_Point, | Sim4100_Sub | Length |
Ack_mapdesc1, | DA_ACK, | 0, | Wrbx, | Node_A, | 1, | 1.0s, | Ack, | 1, | 2, | 3, | 1 |
Ack_Mapdesc2, | DA_ACK, | 1, | wrbx, | Node_A, | 1, | 1.0s, | Ack, | 1, | 2, | 4, | 1 |
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