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Building Technologies Basic documentation LMV37.4... CC1P7546en
16 Special feature: Burner identification 17.12.2018
16 Special feature: Burner identification
The OEM must assign an individual burner identification to every burner. This ensures
that during backup/restore, incompatible parameter sets cannot be copied between
different burners (also refer to the documentation on the PC software ACS410 under
Backup/Restore and in this documentation in chapter Backup / Restore).
No. Parameter
113 Burner identification
17 Connection to superposed systems
17.1 General information and building automation
functions
Communication with a building automation is made possible via a data link using the
COM X92 port and a special interface with galvanic separation and physical bus level
adaptation. This port can be used for connection of a LMV37.4 with Modbus, depending
on the configuration made.
OCI412.10
RS485
Modbus
LMV...
COM
X92
Figure 95: Connection via interface COM 92 to superposed systems
Note
Breakdown of bus communication.
If the LMV37.4 detects a breakdown of bus communication, the building automation
system must rewrite the following values upon restoration of communication:
Modbus: Mode, Modbus operating mode, and predefined target output
General setting values for connection of the LMV37.4 to the building automation
system
(for factory settings, refer to the parameter list):
Bus communication may only be interrupted for the time set.
If communication is disturbed for a longer period of time, the LMV37.4 delivers a fault
status message and the values set in the LMV37.4 by building automation are reset.
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