QYASPOL API not returning receiver data

Rob Dekko was helping me with a CL to grab system ASP numbers using
the QYASPOL API, but all I get is the error message:

GUI0141 'Filter specification is not valid'.

Heres the code:

             PGM                                                       
             DCL     VAR(&RCVR)    TYPE(*CHAR) LEN(113)                
             DCL     VAR(&LEN)     TYPE(*CHAR) LEN(4)                  
             DCL     VAR(&LIST)    TYPE(*CHAR) LEN(80)                 
             DCL     VAR(&NUMR)    TYPE(*CHAR) LEN(4)                  
             DCL     VAR(&NUMF)    TYPE(*CHAR) LEN(4)                  
             DCL     VAR(&FLTR)    TYPE(*CHAR) LEN(14)                 
             DCL     VAR(&FMT)     TYPE(*CHAR) LEN(8) VALUE('YASP0200')
             DCL     VAR(&ERR)     TYPE(*CHAR) LEN(80)                 
             DCL     VAR(&FSIZE)   TYPE(*CHAR) LEN(4)                  
             DCL     VAR(&FKEY)    TYPE(*CHAR) LEN(4)                  
             DCL     VAR(&FFDSIZE) TYPE(*CHAR) LEN(4)                  
             DCL     VAR(&FDATA)   TYPE(*CHAR) LEN(4)                  
             CHGVAR  VAR(%BIN(&FSIZE 1 4))     VALUE(16)             
             CHGVAR  VAR(%BIN(&FKEY 1 4))      VALUE(1)              
             CHGVAR  VAR(%BIN(&FFDSIZE 1 4))   VALUE(4)              
             CHGVAR  VAR(%BIN(&FDATA 1 4))     VALUE(-1)             
             CHGVAR  VAR(&FLTR)                VALUE(&FSIZE   *CAT + 
                                                     &FKEY    *CAT + 
                                                     &FFDSIZE *CAT + 
                                                     &FDATA)         
                                                                     
             CHGVAR   VAR(%BIN(&ERR 1 4))      VALUE(80)             
             CHGVAR   VAR(%BIN(&ERR 5 4))      VALUE(0)              
             CHGVAR   VAR(%SST(&ERR 9 72))     VALUE(' ')            
             CHGVAR   VAR(%BIN(&LEN 1 4))      VALUE(113)            
             CHGVAR   VAR(%BIN(&NUMF 1 4))     VALUE(1)              
             CHGVAR   VAR(%BIN(&NUMR 1 4))     VALUE(0)              
             CALL     PGM(QGY/QYASPOL) + 
                        PARM(&RCVR     + 
                             &LEN      + 
                             &LIST     + 
                             &NUMR     + 
                             &NUMF     + 
                             &FLTR     + 
                             &FMT      + 
                             &ERR)       
             ENDPGM           


It seems to not like the value in &FLTR.
I looked up the API at publib.boulder.ibm.com , but .....

the harder I think, the confuser I get

                                                                
Dan Rasch - because if the human species concentrated on the really 
important things in life, there would be a shortage of fishing poles!


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