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7. Modbus TCP
Dual port ethernet option board installation manual
MN032004EN October 2017 www.eaton.com
7.1.3.5 Holding registers
The values can be read with function code 3. Modbus registers are mapped to drive IDs as follows:
Table 18. Defined holding registers
Address range Purpose Access type See R/W Max R/W size
0001 – 2000 Eaton Application ID´s 16bit Table 19 RW 30/30
2001 – 2011 FBProcessDataIN 16bit Table 20 RW 11/11
2051 – 2070 FBProcessDataIN 32bit
1)
Table 20 RW 20/20
2101 – 2111 FBProcessDataOUT 16bit Table 21 RO 11/0
2151 – 2170 FBProcessDataOUT 32bit
1)
Table 21 RO 20/0
2200 – 10000 Eaton Application ID´s 16bit Table 19 RW 30/30
10501 – 10530 IDMap 16bit Figure 28 RW 30/30
10601 – 10630 IDMap Read/Write 16bit Table 22 RW 30/30
2)
10701 – 10760 IDMap Read/Write 32bit 1) Table 22 RW 30/30
20001 – 40000 Eaton Application ID's 32bit
1)
Table 19 RW 30/30
40001 – 40005 Operation day counter 16bit Table 25 RO 5/0
40011 – 40012 Operation day counter 32bit
1)
Table 24 RO 2/0
40101 – 40105 Resettable operation day counter 16bit Table 27 R, Write 1 to first index to reset 5/0
40111 – 40112 Resettable operation day counter 32bit Table 26 RO 2/0
40201 – 40203 Energy counter 16bit Table 29 RO 3/0
40211 – 40212 Energy counter 32bit Table 28 RO 2/0
40301 – 40303 Resettable energy counter 16bit Table 31 R, Write 1 to first index to reset 3/0
40311 – 40312 Resettable energy counter 32bit Table 30 RO 2/0
40401 – 40430 Fault history 16bit Table 32 RO 30/0
40501 Communication timeout 16bit Table 34 RW 1/1
40511-40568 Fault history with 16 bit fault codes 16bit Table 33 RO 30/0
1) Not supported in current version. See chapter 5.
7.1.3.5.1. Eaton application IDs
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 19. Parameter IDs
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 1-20000
7.1.3.5.2. FB process data in
The process data fields are used to control the 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.