Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r0589eeee132373075cccc56eab04db2b5160ae81 -re2ca8378636da437905103e59033cf036b5304a9
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 0589eeee132373075cccc56eab04db2b5160ae81)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision e2ca8378636da437905103e59033cf036b5304a9)
@@ -7,8 +7,8 @@
 *
 * @file    SystemCommMessages.c
 *
-* @author  (last)      Dong Nguyen
-* @date    (last)      27-Sep-2022
+* @author  (last)      Michael Garthwaite
+* @date    (last)      12-Oct-2022
 *
 * @author  (original)  Dara Navaei
 * @date    (original)  05-Nov-2019
@@ -6389,14 +6389,11 @@
     BOOL result = FALSE;
 
     // Verify payload length
-    if ( sizeof( F32 ) == message->hdr.payloadLen )
+    if ( sizeof( 0 ) == message->hdr.payloadLen )
     {
         if ( TRUE == isTestingActivated() )
         {
-            F32 dacVRef;
-
-            memcpy( &dacVRef, message->payload, sizeof( F32 ) );  // TODO - Payload no longer used.  Update Dialin command and expected payload len in f/w.
-            result = setSyringePumpDACVref();
+           result = setSyringePumpDACVref();
         }
     }