How do I pass the parameter values of the schematic to those of the instances inside the schematic

Hi ,

I created a schematic with a simple RLC network.

Then made a symbol for this schematic. 

Now I am trying to pass the R, L ,C values from the schematic's CDF parameters.

I used something like this:

cv=dbOpenCellViewByType("Photonics_cadence" "Pd_schem" "schematic" "schematic" "w")
res=dbOpenCellViewByType("analogLib" "res" "symbol" "" "r")

cellId=ddGetObj("Photonics_cadence" "Pd_schem")

cdfId=cdfCreateBaseCellCDF(cellId)

param=cdfCreateParam(cdfId , ?name "Res_R0"
?prompt "Res_R0 (ohm)"
?defValue "100"
?type "string"
?display "artParameterInToolDisplay('Res_R0)"
?parseAsNumber "yes"
?parseAsCEL "yes" )

dbCreateParamInst(cv res "R1" 1:1 "R90" 1 list(list("r" "string" param~>value)) t)

The value of R1 is by default 100. 

However when I am trying to change the param  "Res_R0" from the property box of the schematic symbol, its not reflected in the R0.

Am I missing something.