Daikin MD5 - Bacnet Quick-Start Sequence

AV26 MBOX DATA
This object holds the mailbox function’s parameter value – a value that was read, or is to be written.
See BV15 and BV16.
None W
AV27 EXT PID STPT
This object sets the External PID controller setpoint. The corresponding drive parameter is 4211.
Control requires parameter 4210, PID SETPOINT SEL, value = 19 (INTERNAL).
Percent C
NOTE: For Present Value Access Types, R = Read-only,
W = Writeable, C = Commandable. Commandable
values support priority arrays & relinquish defaults.
BACnet Quick-Start Sequence
The following steps summarize the process for enabling and conguring BACnet on the MD5:
1. Enable BACnet protocol: Set drive parameter 9802,
COMM PROTOCOL SEL = BACNET (5).
NOTE: If you cannot see the desired selection on the panel,
your drive does not have that protocol software in the
application memory.
— To conrm this selection, read drive parameter 5301,
EFB PROTOCOL ID. It should read x5xx (where “x” is
any value).
2. Place the BACnet channel in “reset”: Set drive parameter
5302, EFB STATION ID = 0.
— This setting holds the BACnet communication channel
in reset while remaining settings are completed.
3. Dene the MS/TP baud rate.
— Set drive parameter 5303, EFB BAUD RATE =
appropriate value.
4. Dene the Device Object Instance ID.
— To dene a specic device object instance value,
use drive parameters 5311 and 5317 (object
instance values must be unique and in the range 1 to
4,194,303).
— To use the drive’s MS/TP MAC ID as the device object
instance value, set drive parameter 5311 and 5317 =
0.
— BACnet requires a unique Device Object ID for each
device on the BACnet network.
5. Dene a unique MS/TP MAC ID. Set drive parameter
5302, EFB STATION ID = appropriate value.
— Once this parameter is set to a non-zero value,
current BACnet settings are “latched” and used for
communication until the channel is reset.
— In order to participate in MS/TP token passing, the
MAC ID used must be within the limits dened by
other masters’ “Max Master” property.
6. Conrm proper BACnet communication.
— When BACnet communication is operating properly,
drive parameter 5316, EFB PAR 16 (the MS/TP token
counter), should be continually increasing.
— Drive parameter 5306, UART ERRORS, should be
stable. (With autobaud detection, this parameter may
increase until the proper baud rate is detected.)
7. Congure the Device Object Name.
— BACnet requires a unique name for each device on
the BACnet network. Write the Object Name of the
Device Object of the drive to a unique text string using
the operator workstation or software tool capable of
writing BACnet properties. The Object Name cannot
be modied with the Daikin display panel and only the
Device Object name is writable in this product. We do
not support writing of Device Description.
OM 1191 • MD5 VFD 62 www.DaikinApplied.com
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