Honeywell SmartVFD HVAC2 Applications Manual page 176

Modbus address area
The Modbus interface of SmartVFD HVAC2 uses
the ID numbers of the application parameters as
addresses. The ID numbers can be found in the
parameter tables in "STANDARD application
parameters" on page 72. When several
parameters / monitoring values are read at a
time, they must be consecutive. 11 addresses can
be read and the addresses can be parameters or
monitoring values.
NOTE: With some PLC manufacturers, the inter-
face driver for Modbus RTU communica-
tion may contain an offset of 1 (the ID
number to be used would then subtract
1).
Modbus process data
Process data is an address area for fieldbus
control. Fieldbus control is active when the value
of parameter 2.1 (Control place) is 1 (= fieldbus).
The content of the p ()rocess data can be
programmed in the application.The following
tables present the process data contents in
SmartVFD HVAC2 Application.
Table 57. Output process data
Modbus
ID register
2101 32101,
42101
2102 32102,
42102
2103 32103,
42103
2104 32104,
42104
2105 32105,
42105
2106 32106,
42106
176
Name Scale
FB Status Word -
FB General -
Status Word
Reserved 0,01 %
Programmable -
by P9.1
(Default:
Frequency
reference)
Programmable 0,01 +/- Hz
by P9.2
(Default:
Output
frequency)
Programmable 1
by P9.3
(Default: Motor
speed)
Type
Binary
coded
Binary
coded
-
+/- Rpm
31-00108—07