State Monitoring - Mitsubishi Electric LMAP03U Technical Manual

5.6 State monitoring

5.6.1 State monitoring method
The method to monitor the operation state of air conditioners from the BMS via LM ADAPTER can roughly
be classified into two systems, namely (1) Event driven system and (2) Polling system. The configuration
property for setting differs depending on the systems.
Operation State is automatically output from LM ADAPTER at the
outline change of air conditioner status (event generation).
State change At state change of air conditioner
output timing
Condition Each variable of both BMS and LM ADAPTER should
be bound.
Communication
image
Relating nci nciStartOutTm【Send Start Time】
nciStartHrtBt【Send Heartbeat Start Time】
nciMinOutTm【Minimum Send Time】
nciSndHrtBt_1【Send Heartbeat_1】
nciSndHrtBt_2【Send Heartbeat_2】
nciInitStartTm【Initialize Start Time】
nciInitOutTm_1【Initialize Send Time_1】
nciInitOutTm_2【Initialize Send Time_2】
nciSet_1【Communication Timing】
Event driven system
BMS LM-AP
Stat e: st op
stop
Stat e: run
run
Regardless of air conditioner state changes, the
variable is directly acquired through polling or
fetching from the BMS at any time.
At Poll (Fetch) demand
Polling cycle is determined taking the following into
consideration.
①Communication traffic of whole LONWORKS
network
②Response performance of LM ADAPTER
Air
BMS
condi tioner
Stop
Poll
cycle
Poll
cycle
Run
Poll
cycle
nciPollFetch【Effective PollFetch】
nciOffline【Effective Offline Mode】
nciSet_1【Comminication Timing】
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Polling system
LM-AP
condi tioner
Stat e: st op
Poll demand
stop
Poll demand
Stat e: run
stop
Poll demand
run
Air
Stop
Run