Index: firmware/App/Controllers/DrainPump.h
===================================================================
diff -u -r54f45c387430e440ab4607451fc84dea61f273f1 -re4b79bd0d31e779619a787f9ce4352d0fd3d4dce
--- firmware/App/Controllers/DrainPump.h	(.../DrainPump.h)	(revision 54f45c387430e440ab4607451fc84dea61f273f1)
+++ firmware/App/Controllers/DrainPump.h	(.../DrainPump.h)	(revision e4b79bd0d31e779619a787f9ce4352d0fd3d4dce)
@@ -14,43 +14,62 @@
 * @date (original) 08-Apr-2020
 *
 ***************************************************************************/
-
-#ifndef __DRAIN_PUMP_H__
-#define __DRAIN_PUMP_H__
-
-#include "DGCommon.h"
-
-/**
- *  @defgroup DrainPump DrainPump
- *  @brief Drain Pump monitor/controller module.  Controls and monitors the drain pump.
- *
- *  @addtogroup DrainPump
- *  @{
- */
-
-// ********** public definitions **********
-
-#define MAX_DRAIN_PUMP_RPM_TARGET       3000    ///< Maximum RPM target for drain pump.
-#define MIN_DRAIN_PUMP_RPM_TARGET       300     ///< Minimum RPM target for drain pump (though zero is allowed if turning pump off).
-
-// ********** public function prototypes **********
-
-void initDrainPump( void );
-void execDrainPumpMonitor( void );
-void execDrainPumpController( void );
-
-BOOL setDrainPumpTargetSpeed( U32 rpm );
-void signalDrainPumpHardStop( void );
-
-SELF_TEST_STATUS_T execDrainPumpTest( void );
-
-U32 getTargetDrainPumpSpeed( void );
-
-BOOL testSetDrainPumpDataPublishIntervalOverride( U32 value );
-BOOL testResetDrainPumpDataPublishIntervalOverride( void );
-BOOL testSetTargetDrainPumpSpeedOverride( U32 value );
-BOOL testResetTargetDrainPumpSpeedOverride( void );
-
-/**@}*/
-
-#endif
+
+#ifndef __DRAIN_PUMP_H__
+#define __DRAIN_PUMP_H__
+
+#include "DGCommon.h"
+
+/**
+ *  @defgroup DrainPump DrainPump
+ *  @brief Drain Pump monitor/controller module. Controls and monitors the drain pump.
+ *  Drain pump manufacturer: Diener, PN: 01006-PM-0 Rev A.
+ *  The pump shall produce flow rates of 100-2000 ml/min at 1 bar differential pressure.
+ *  The motor used shall be either Diener part number MA0250 or MA0297.
+ *
+ *  @addtogroup DrainPump
+ *  @{
+ */
+
+// ********** public definitions **********
+
+#define MIN_DRAIN_PUMP_RPM       300     ///< Minimum RPM target for drain pump (though zero is allowed if turning pump off).
+#define MAX_DRAIN_PUMP_RPM       3000    ///< Maximum RPM target for drain pump.
+
+/// Drain pump data publish
+typedef struct
+{
+    U32 rpmSetPoint;            ///< Drain pump speed set point (for open loop)
+    U32 pumpDACSet;             ///< Drain pump DAC set value
+    U32 drainPumpState;         ///< Drain pump state machine state
+    U32 drainPumpRPM;           ///< Drain pump current RPM
+} DRAIN_PUMP_DATA_T;
+
+// ********** public function prototypes **********
+
+void initDrainPump( void );
+void execDrainPumpMonitor( void );
+void execDrainPumpController( void );
+
+BOOL setDrainPumpTargetRPM( U32 rpm );
+
+BOOL setDrainPumpTargetDeltaPressure( F32 deltaP );
+
+void signalDrainPumpHardStop( void );
+
+SELF_TEST_STATUS_T execDrainPumpTest( void );
+
+U32 getTargetDrainPumpRPM( void );
+
+F32 getTargetDrainPumpDeltaP( void );
+
+BOOL testSetDrainPumpDataPublishIntervalOverride( U32 value );
+BOOL testResetDrainPumpDataPublishIntervalOverride( void );
+
+BOOL testSetTargetDrainPumpRPM( U32 value );
+
+BOOL testSetTargetDrainPumpDeltaPressure( F32 value );
+
+/**@}*/
+
+#endif