Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -r30e46b4f07697652455fa861bcaa18f3d60ae11f -r1abc0349c736a70fb56db6895947abfbba0eee22
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 30e46b4f07697652455fa861bcaa18f3d60ae11f)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 1abc0349c736a70fb56db6895947abfbba0eee22)
@@ -7,8 +7,8 @@
 *
 * @file    ModeStandby.c
 *
-* @author  (last)      Varshini Nagabooshanam
-* @date    (last)      29-Jan-2026
+* @author  (last)      Raghu Kallala
+* @date    (last)      30-Apr-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  01-Aug-2024
@@ -208,6 +208,7 @@
 {
     TD_STANDBY_STATE_T state     = STANDBY_WAIT_FOR_TREATMENT_STATE;
     DD_OP_MODE_T ddOperationMode = getDDOpMode();
+    F32 bicarbConvFactor         = BICARBONATE_CONVERSION_FACTOR;
 
 //    switch ( dgOperationMode )
 //    {
@@ -259,6 +260,13 @@
         respRecord.venPresLimitAsymmetricmmHg = getSysConfigTreatmentParameterU32DefaultValue( TREATMENT_PARAM_VEN_PRES_LIMIT_ASYMMETRIC );
         respRecord.tmpPresLimitWindowmmHg     = getSysConfigTreatmentParameterU32DefaultValue( TREATMENT_PARAM_TMP_PRES_LIMIT_WINDOW );
         sendPressureLimitsChangeResponse( &respRecord );
+        // start DD pre-gen  // TODO
+        cmdStartPreGenerateDialysate( (F32)getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW ),
+                                      getTreatmentParameterF32( TREATMENT_PARAM_DIALYSATE_TEMPERATURE ),
+                                      getTreatmentParameterF32( TREATMENT_PARAM_ACID_CONCENTRATE_CONV_FACTOR ),
+                                      bicarbConvFactor,
+                                      getTreatmentParameterU32( TREATMENT_PARAM_SODIUM ),
+                                      getTreatmentParameterU32( TREATMENT_PARAM_BICARBONATE ) );
         // Start treatment workflow with pretreatment mode
         requestNewOperationMode( MODE_PRET );
         treatStartReqReceived = FALSE;