Modbus TCP / Modbus UDP
vacon • 79
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7
7.3.2.5.1.
VACON
®
APPLICATION
ID
S
Application IDs are parameters that depend on the drive's application. These parameters can be
read and written by pointing the corresponding memory range directly or by using the so-called ID
map (more information below). The easiest way to read a single parameter value or parameters with
consecutive ID numbers is to use a straight address. It is possible to read 30 consecutive ID
addresses. Notice that the operation will fail if even one of the consecutive IDs do not exist.
Parameters which have 32 bit value can be read from their own range. For example, if you want to
read the value for ID 864 (FB Status Word), the address must be set to 21726. This address value
comes from values: 20000 + ((ID -1) * 2). The ID value is reduced with one because of zero-based
addressing and the result is multiplied with 2 because one 32 bit value will take two (16 bit)
addresses.
Table 31. Parameter IDs
7.3.2.5.2.
FB P
ROCESS
DATA
IN
The process data fields are used to control the AC drive (e.g. Run, Stop, Reference, Fault Reset) and
to quickly read actual values (e.g. Output frequency, Output current, Fault code). The values in these
indexes can be read and written. The fields are structured as follows (continued on the next page):
Process Data Master -> Slave (max 22 bytes)
Table 32. Fieldbus Process Data IN
Address range
Purpose
ID range
0001-2000
16 bit application parameters
1-2000
2200-10000
16 bit application parameters
2200-10000
20001-40000
32 bit application parameters
1-10000
Address
Name
Range/Type
16-bit
32-bit*
2001
2051 = High data
2052 = Low data
FB Control Word
Binary coded
2002
-
FB General Control Word
Binary coded
2003
2053 = High data
2054 = Low data
FB Speed Reference
0…10000 (100%)
Summary of Contents for optea
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