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;