##ENR_ElementType;
ENR_node = 1
ENR_link = 2

##ENR_ApiFunction;
ENR_getSeries    = 1
ENR_getAttribute = 2
ENR_getResult    = 3

##ENR_ElementCount;
ENR_nodeCount  = 1
ENR_tankCount  = 2
ENR_linkCount  = 3
ENR_pumpCount  = 4
ENR_valveCount = 5

##ENR_Unit;
ENR_flowUnits   = 1
ENR_pressUnits  = 2

##ENR_Time;
ENR_reportStart = 1
ENR_reportStep  = 2
ENR_simDuration = 3
ENR_numPeriods  = 4

##ENR_NodeAttribute;
ENR_demand   = 0
ENR_head     = 1
ENR_pressure = 2
ENR_quality  = 3

##ENR_LinkAttribute;
ENR_flow         = 0
ENR_velocity     = 1
ENR_headloss     = 2
ENR_avgQuality   = 3
ENR_status       = 4
ENR_setting      = 5
ENR_rxRate       = 6
ENT_frctnFctr    = 7