Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r5a61bccd959265c00e5276ba23391198ca82b6dd -r5ff39fd6948ae3656b4035c85325bd8fca0a37f3
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 5a61bccd959265c00e5276ba23391198ca82b6dd)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 5ff39fd6948ae3656b4035c85325bd8fca0a37f3)
@@ -82,6 +82,13 @@
     F32 drainPumpOutletPressure;
 } PRESSURES_DATA_T;
 
+typedef struct
+{
+    U32 activeReservoir;
+    U32 fillToVolumeMl;
+    U32 drainToVolumeMl;
+} RESERVOIR_DATA_T;
+
 #pragma pack(pop)
 
 // ********** private data **********
@@ -307,6 +314,35 @@
 }
 
 /*************************************************************************
+ * @brief
+ * The broadcastDGOpMode function constructs an operation mode msg to be \n
+ * broadcast and queues the msg for transmit on the appropriate CAN channel.
+ * @details
+ * Inputs : none
+ * Outputs : DG op mode msg constructed and queued.
+ * @param mode : ID of current DG op mode
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL broadcastDGOpMode( U32 mode )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_DG_OP_MODE;
+    msg.hdr.payloadLen = sizeof( U32 );
+
+    memcpy( payloadPtr, &mode, sizeof( U32 ) );
+
+    // serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_DG_BROADCAST, ACK_NOT_REQUIRED );
+
+    return result;
+}
+
+/*************************************************************************
  * @brief broadcastRTCEpoch
  * The broadcastRTCEpoch function constructs an epoch  msg to \n
  * be broadcast and queues the msg for transmit on the appropriate CAN channel.
@@ -477,6 +513,31 @@
     return result;
 }
 
+// MSG_ID_DG_RESERVOIR_DATA
+BOOL broadcastReservoirData( U32 resID, U32 fillToVol, U32 drainToVol )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+    RESERVOIR_DATA_T payload;
+
+    // create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_DG_PRESSURES_DATA;
+    msg.hdr.payloadLen = sizeof( RESERVOIR_DATA_T );
+
+    payload.activeReservoir = resID;
+    payload.fillToVolumeMl = fillToVol;
+    payload.drainToVolumeMl = drainToVol;
+
+    memcpy( payloadPtr, &payload, sizeof( RESERVOIR_DATA_T ) );
+
+    // serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_DG_BROADCAST, ACK_NOT_REQUIRED );
+
+    return result;
+}
+
 /*************************************************************************
  * @brief
  * The handlePowerOffWarning function handles a power off warning message \n
@@ -520,18 +581,20 @@
 {
     MESSAGE_T msg;
     U08 *payloadPtr = msg.payload;
-    U16 buildNum = (U16)DG_VERSION_BUILD;
+    U08 major = (U08)DG_VERSION_MAJOR;
+    U08 minor = (U08)DG_VERSION_MINOR;
+    U16 build = (U16)DG_VERSION_BUILD;
 
     // create a message record
     blankMessage( &msg );
     msg.hdr.msgID = MSG_ID_DG_VERSION;
     msg.hdr.payloadLen = sizeof( U08 ) + sizeof( U08 ) + sizeof( U16 );
 
-    *payloadPtr = (U08)DG_VERSION_MAJOR;
-    payloadPtr++;
-    *payloadPtr = (U08)DG_VERSION_MINOR;
-    payloadPtr++;
-    memcpy( payloadPtr, &buildNum, sizeof( U16 ) );
+    memcpy( payloadPtr, &major, sizeof( U08 ) );
+    payloadPtr += sizeof( U08 );
+    memcpy( payloadPtr, &minor, sizeof( U08 ) );
+    payloadPtr += sizeof( U08 );
+    memcpy( payloadPtr, &build, sizeof( U16 ) );
 
     // serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
     serializeMessage( msg, COMM_BUFFER_OUT_CAN_DG_BROADCAST, ACK_NOT_REQUIRED );