6
vacon • 32
Communications
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
6.3.4
Holding registers and input registers
An "input register" in Modbus is a 16-bit value which is read-only. A "holding register" in Modbus is
a 16-bit value which can be both read and written. Holding and input registers are accessed using
different function codes, and the address ranges are different. In VACON
®
100 family AC drives, the
same information can be accessed as input registers and holding registers, i.e. input register X
refers to the same 16-bit value as the holding register X.
The Modbus registers are mapped to the VACON
®
100 family AC drive as follows:
Accessing unsupported values returns the error code "Illegal Data Address".
Table 19. Defined holding registers
Address range
Purpose
Access
type
See
R/W
Max R/W
size
0001 - 2000
Vacon Application IDs
16bit
Table 20
RW
30/30
2001 - 2019
FBProcessDataIN
16bit
Table 21
RW
19/19
2051 - 2086
FBProcessDataIN
32bit
Table 21
RW
36/36
2101 - 2119
FBProcessDataOUT
16bit
Table 22
RO
19/0
2151 - 2186
FBProcessDataOUT
32bit
Table 22
RO
36/0
2200 - 10000
Vacon Application IDs
16bit
Table 20
RW
30/30
10501 - 10530
IDMap
16bit
Figure 7.
RW
30/30
10601 - 10630
IDMap Read/Write
16bit
Table 23
RW
30/30
10701 - 10760
IDMap Read/Write
32bit
Table 24
RW
30/30
20001 - 40000
Vacon Application IDs
32bit
Table 20
RW
30/30
40001 - 40005
Operation day counter
16bit
Table 26
RO
5/0
40011 - 40012
Operation day counter
32bit
Table 25
RO
2/0
40101 - 40105
Resettable operation
day counter
16bit
Table 28
R, Write 1 to
first index
to reset
5/0
40111 - 40112
Resettable operation
day counter
32bit
Table 27
RO
2/0
40201 - 40203
Energy counter
16bit
Table 30
RO
3/0
40211 - 40212
Energy counter
32bit
Table 29
RO
2/0
40301 - 40303
Resettable energy coun-
ter
16bit
Table 32
R, Write 1 to
first index
to reset
3/0
40311 - 40312
Resettable energy coun-
ter
32bit
Table 31
RO
2/0
40401 - 40430
Fault history
16bit
Table 33
RO
30/0
40501
Communication time
out
16bit
Table 35
RW
1/1
40511-40568
Fault history with 16 bit
fault codes
16bit
Table 34
RO
30/0
Summary of Contents for 100 INDUSTRIAL
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