I have corrected the syntax and am still not able to run the timer, is this because of the way I have the timer configured in the FB. I moved the timer outside the IF loop but this did not change the operation.

 The Next is set high externally through a function from start.

#itt_next[#SPC_NUM].%X0 := #itt_start[0].%X0

// main program loop

//

"IEC_Timer_0_DB_2".PT :="DB_L_SET".SEQ_SRT_DUR[#SPC_NUM];

#Etime := "IEC_Timer_0_DB_2".ET;

IF #start AND NOT #end THEN

        IF #j < #iterations THEN

              IF NOT #fstart THEN

                   #itt_start[0].%X0 := 1;

               END_IF;

               IF "IEC_Timer_0_DB_2".Q AND #loop_start THEN

                    "IEC_Timer_0_DB_2".IN := FALSE;

                    #itt_start[0].%X0 := 1;

                    #loop_start := FALSE;

                    #j := #j + 1;

               END_IF;

               IF  #itt_next[#SPC_NUM].%X0 THEN

                    "IEC_Timer_0_DB_2".IN := TRUE;

                    #itt_start[#SPC_NUM].%X0 := FALSE;

                    #loop_start := TRUE;

               END_IF;

        ELSE

                #end := TRUE;

                #itt_start[#SPC_NUM].%X0 := FALSE;

                #j := 0;

        END_IF;

ELSE

    #fstart := FALSE;

    #end := FALSE;

    #itt_start[#SPC_NUM].%X0 := FALSE;

END_IF;