db/daq.proto

@@ -119,7 +119,9 @@ setMinRate{
 readMinRate{
  out "DL %(\$1THRESHOLD-MONITOR_RBV)d";
  in "%f";
- @mismatch{in "%(\$1MsgTxt)s";}
+ @init{
+  # This is a trick to avoid UDF and initialize to whatever is set in the VAL field
+ }
 }
 
 setRateMonitor{

db/daq_common.db

@@ -238,8 +238,8 @@ record(ai,"$(INSTR)$(NAME):THRESHOLD_RBV")
 {
  field(DESC, "Minimum rate for counting to proceed")
  field(INP, "@$(PROTO) readMinRate($(INSTR)$(NAME):) $(ASYN_PORT)")
+ field(VAL, 0)
  field(DTYP, "stream")
- field(SCAN, "1 second")
  field(EGU, "cts/sec")
 }
 
@@ -260,6 +260,16 @@ record(longin,"$(INSTR)$(NAME):THRESHOLD-MONITOR_RBV")
  field(DTYP, "stream")
  field(SCAN, "1 second")
  field(EGU, "CH")
+ field(FLNK, "$(INSTR)$(NAME):THRESHOLD-MONITOR-FLNK")
+}
+
+record(calcout, "$(INSTR)$(NAME):THRESHOLD-MONITOR-FLNK")
+{
+ field(DESC, "Only process Threshold when Non-Zero")
+ field(CALC, "A")
+ field(INPA, "$(INSTR)$(NAME):THRESHOLD-MONITOR_RBV")
+ field(OOPT, "When Non-zero")
+ field(OUT, "$(INSTR)$(NAME):THRESHOLD_RBV.PROC PP")
 }
 
 record(longout, "$(INSTR)$(NAME):CT")