handler ID cached, debug output improved

tasks/FixedSequenceSlot.cpp

@@ -4,7 +4,7 @@
 
 FixedSequenceSlot::FixedSequenceSlot(object_id_t handlerId, uint32_t setTime,
 		int8_t setSequenceId, ExecutableObjectIF* executableObject,
-		PeriodicTaskIF* executingTask) :
+		PeriodicTaskIF* executingTask) : handlerId(handlerId),
 		pollingTimeMs(setTime), opcode(setSequenceId) {
     if(executableObject == nullptr) {
         return;

tasks/FixedSequenceSlot.h

@@ -20,6 +20,8 @@ public:
 			PeriodicTaskIF* executingTask);
 	virtual ~FixedSequenceSlot();
 
+	object_id_t handlerId;
+
 	/**
 	 * @brief	Handler identifies which object is executed in this slot.
 	 */