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5.4 Response restrictions on Poll (Fetch) demand
Upon receipt of Poll (Fetch) demand from the BMS, LM ADAPTER responses with the latest value of the
corresponding variable.
As the operation status being held will be responded at power shutdown due to air conditioner inspection or
communication error caused by the disconnection of M-NET transmission line, the error cannot be judged by
the BMS.
When the present data being held is uncertain as is in such case, LM ADAPTER can be set so that error
generation can be judged easily by suppressing the response against Poll (Fetch) demand.
①
Suppressing the response of unconnected indoor units.
②
Suppressing the response of indoor units unable to communicate.
This setting is to follow the configuration property below.
Effective
PollFetch
【
nciPollFetch
】
Status
change
Monitor
transmission
BMS
LM
ADAPTER
Indoor unit
Monitor
transmission
Monitor demand
Monitor response
Event driben system
Poll (Fetch)
system
Monitor demand
Suppressing
Poll response
Responding with
holding latest state
Communication
error