Index: firmware/App/Controllers/PresOccl.h
===================================================================
diff -u -r30f049651877229042e3f8700c8596e5b9a1e0f4 -rccfd15568f1e3d304320c2babb2fd4bcf0413304
--- firmware/App/Controllers/PresOccl.h	(.../PresOccl.h)	(revision 30f049651877229042e3f8700c8596e5b9a1e0f4)
+++ firmware/App/Controllers/PresOccl.h	(.../PresOccl.h)	(revision ccfd15568f1e3d304320c2babb2fd4bcf0413304)
@@ -1,17 +1,17 @@
 /**************************************************************************
 *
-* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2019-2021 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
-* @file PresOccl.h
+* @file    PresOccl.h
 *
-* @author (last) Sean Nash
-* @date (last) 22-Sep-2020
+* @author  (last)      Sean Nash
+* @date    (last)      19-Aug-2021
 *
-* @author (original) Sean
-* @date (original) 15-Jan-2020
+* @author  (original)  Sean
+* @date    (original)  15-Jan-2020
 *
 ***************************************************************************/
 
@@ -23,7 +23,8 @@
 /**
  *  @defgroup PressureOcclusion PressureOcclusion
  *  @brief Pressure & Occlusion controller/monitor module.  Monitors the
- *  blood line pressure sensors and pump occlusion sensors.
+ *  venous line pressure sensor (Honeywell HSCMRNN030PDSA3), arterial line
+ *  pressure sensor (Memscap 32022-100mm) and pump occlusion sensors (SMD DIA8308).
  *
  *  @addtogroup PressureOcclusion
  *  @{
@@ -51,28 +52,33 @@
 /// Payload record structure for the pressure & occlusions data message.
 typedef struct
 {
-    F32 arterialPressure;
-    F32 venousPressure;
-    U32 bldPumpOcclusion;
-    U32 diPumpOcclusion;
-    U32 doPumpOcclusion;
+    F32 arterialPressure;                   ///< Latest arterial pressure (mmHg)
+    F32 venousPressure;                     ///< Latest venous pressure (mmHg)
+    U32 bldPumpOcclusion;                   ///< Latest BP occlusion (no units)
+    U32 diPumpOcclusion;                    ///< Latest DPi occlusion (no units)
+    U32 doPumpOcclusion;                    ///< Latest DPo occlusion (no units)
 } PRESSURE_OCCLUSION_DATA_T;
 
 // ********** public function prototypes **********
 
 void initPresOccl( void );
 void execPresOccl( void );
+
+void execPresOcclTest( void );
+SELF_TEST_STATUS_T execPresOcclDryTest( void );
 
-SELF_TEST_STATUS_T execPresOcclTest( void );
-
 F32  getMeasuredArterialPressure( void );
 F32  getMeasuredVenousPressure( void );
 U32  getMeasuredBloodPumpOcclusion( void );
 U32  getMeasuredDialInPumpOcclusion( void );
 U32  getMeasuredDialOutPumpOcclusion( void );
 
 BOOL isCartridgeLoaded( void );
+BOOL isCartridgeUnloaded( void );
+BOOL isSalineBagEmpty( void );
 
+void setOcclusionInstallLevels( void );
+
 BOOL testSetPresOcclDataPublishIntervalOverride( U32 value );
 BOOL testResetPresOcclDataPublishIntervalOverride( void );
 BOOL testSetArterialPressureOverride( F32 value );