18
7. Modbus TCP
Dual port ethernet option board installation manual
MN032004EN October 2017 www.eaton.com
Table 14. Supported functions
Function
code
Current terminology
Access
type
Address
range (hex)
1 (0x01)
Read coils
Discrete
00000-0FFFF
2 (0x02)
Read Input Discrete
Discrete
10000-1FFFF
3 (0x03)
Read holding registers
16bit
40000-4FFFF
4 (0x04)
Read input registers
16bit
30000-3FFFF
5 (0x05)
Force single coils
Discrete
00000-0FFFF
6 (0x06)
Write single register
16bit
40000-4FFFF
15 (0x0F)
Force multiple coils
Discrete
00001-0FFFF
16 (0x10)
Write multiple registers
16bit
40000-4FFFF
23 (0x17)
Read/Write multiple registers 16bit
40000-4FFFF
otee:
N
Broadcasting is not supported in TCP.
7.1.3 Modbus data mapping
7.1.3.1 Coil registers
Coil registers contain binary data (Read/Write). See Table 15.
Table 15. Defined coil registers
Address
Function
Purpose
0001
RUN/STOP
Control Word, bit 0
0002
Direction
Control Word, bit 1
0003
Fault reset
Control Word, bit 2
0017
Reset
Clears operation days trip counter
0018
Reset
Clears energy trip counter
7.1.3.2 Clearing resettable counters
The Eaton drives have trip counters for operation days and
energy. These counters can be reset to zero by writing value
‘1’ to addresses defined in Table 16. Resetting the counters
is not supported in Eaton 20, Eaton 20 X or Eaton 20 CP.
Table 16. Clearing trip counters
Address
Function
Purpose
40101
Reset
Clears operation days trip counter
40301
Reset
Clears energy trip counter
For compatibility with OPT-CI, these registers can be cleared
also by writing ‘1’ to these coils.
Address
Function
Purpose
0017
Reset
Clears operation days trip counter
0018
Reset
Clears energy trip counter
7.1.3.3 Input discrete registers
Input discrete registers contain binary data (Read).
See Table 17.
Table 17. Defined input descrete registers
Address
Function
Purpose
10001
Ready
Status Word, bit 0
10002
Run
Status Word, bit 1
10003
Direction
Status Word, bit 2
10004
Fault
Status Word, bit 3
10005
Alarm
Status Word, bit 4
10006
At reference
Status Word, bit 5
10007
Zero speed
Status Word, bit 6
10008
Flux ready
Status Word, bit 7
7.1.3.4 Input registers
The values can be read with function code 4. These are for
compatibility with the OPT-CI option board. They return the
same values as holding register counterparts.
Address
range
Purpose
Access
type
See
R/W
Max
R/W size
1 – 5
Operation
day counter
16bit
Table 25
RO
5/0
101 – 105
Resettable
operation
day counter
16bit
Table 27
R, Write 1 to
first index to
reset
5/0
201 – 203 Energy
counter
16bit
Table 29
RO
5/0
301 – 303 Resettable
energy
counter
16bit
Table 31
R, Write 1 to
first index to
reset
5/0
401 – 430 Fault history
16bit
Table 32
RO
30/0