Check individual heartbeat frames for timeouts

Core/Inc/AMS_Errorcodes.h

@@ -12,5 +12,6 @@
 
 #define SlavesTimeoutError 1
 #define SlavesErrorFrameError 2
+#define SLAVES_FRAME_TIMEOUT_ERROR 3
 
 #endif /* INC_AMS_ERRORCODES_H_ */

Core/Inc/Slave_Monitoring.h

@@ -19,6 +19,7 @@
 #define NUMBEROFTEMPS 32
 
 #define SLAVETIMEOUT 500
+#define SLAVE_HEARTBEAT_FRAMES 11
 
 typedef struct {
 
@@ -28,6 +29,7 @@ typedef struct {
   uint32_t timestamp;
   uint8_t error;
   uint8_t timeout;
+  uint32_t frame_timestamps[SLAVE_HEARTBEAT_FRAMES];
 
 } SlaveHandler;