LS ELECTRIC LSLV-H100 Series, User Manual

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RS-485
Communication Features
379
BACnet Parameter Setting Details
Code Description
COM-01
Int485 ST ID
(MAC ID)
Refers to MACID setting parameter used in BACnet. All MACIDs of the
inverter using BACnet must be set before connecting to BUS. MACID
must have the unique value from the Network to be connected to
MACID. If BACnet is used, the value must be within 0
–127.
Communication is not available if the value is not included in the range.
COM-03
Baud Rate
Sets the communication speed to use in the network.
COM-20
BAC Mas Master Range for Max Master that is the number of devices currently connected
to the communication Line is 1
–127, and the default value is 127.
COM-21
–22
BAC Dev
Inst 1
–2
BACnet Device Instance is used to identify BACnet Device, and must be
set as the unique value in the BACnet network. It is used efficiently when
finding BACnet Device of other Devices while installing.
The following formula is used to calculate the Device Instance value:
(COM-21 X 1000) + COM-22
Therefore, in the Device Instance value, COM-21 takes the thousands
and higher places (fourth digit and over) and COM-22 takes the
hundreds and lower places (third digit and below). COM-21 and COM-22
have the ranges of 0
–4194 and 0–999 respectively, because Device
Instance can have the value within 0
–4,194,302.
COM-23
BAC Password
Refers to the password used for Warm/Cold Start. COM-23 Password
parameter can be set within 0
–32767, and the default value is 0. If the
parameter setting range is set to 1
–32768, the Password value set at
BACnet Master and the value set at COM-23 must be the same to
operate Warm/Cold Start.
If COM-
23 Password is set to ‘0’, the password of BACnet Master is
ignored and Warm/Cold Start is operated.
Note
MaxMaster and MACID affect performing Network communication. It is recommended to set as
small value as possible, and to set the continuous value for MACID. If the values are set as
explained above, efficient Token Passing Configuration is possible because each Master tries to
give Token to Device set as its own (MACD+1).
7.4.4 Protocol Implementation
The following table sums the information required to implement a BACnet system. Refer to
each section of the table to implement a BACnet system properly.