ABB ACS550 Series, User Manual

Page: 205 / 310

ACS550 User’s Manual 205
Embedded fieldbus
For the 1xxxx registers:
• Additional discrete inputs are added sequentially.
The ACS550 supports the following Modbus function codes for discrete inputs:
3xxxx Mapping – Modbus inputs. The drive maps the following information to the
3xxxx Modbus addresses called Modbus input registers:
• any user defined analog inputs.
The following table summarizes the input registers:
The ACS550 supports the following Modbus function codes for 3xxxx registers:
4xxxx Register mapping. The drive maps its parameters and other data to the
4xxxx holding registers as follows:
• 40001…40099 map to drive control and actual values. These registers are
described in the table below.
• 40101…49999 map to drive parameters 0101…9999. Register addresses that do
not correspond to drive parameters are invalid. If there is an attempt to read or
write outside the parameter addresses, the Modbus interface returns an
exception code to the controller.
1 0028
STATUS WORD
– Bit 27 Reserved REQ_REF1
1 0029
STATUS WORD
– Bit 28 Reserved REQ_REF2
1 0030
STATUS WORD
– Bit 29 Reserved REQ_REF2EXT
1 0031
STATUS WORD
– Bit 30 Reserved ACK_STARTINH
1 0032
STATUS WORD
– Bit 31 Reserved ACK_OFF_ILCK
1 0033
DI
1 DI1 DI1
1 0034
DI
2 DI2 DI2
1 0035
DI
3 DI3 DI3
1 0036
DI
4 DI4 DI4
1 0037
DI
5 DI5 DI5
1 0038
DI
6 DI6 DI6
1
= Active low
Function code Description
02 Read input status
Modbus
reference
ACS550
all profiles
Remarks
3 0001
AI
1 This register shall report the level of Analog Input 1 (0…100%).
3 0002
AI
2 This register shall report the level of Analog Input 2 (0…100%).
Function code Description
04 Read 3xxxx input status
Modbus
ref.
Internal location
(all profiles)
ABB DRV
(5305 = 0
OR
2)
DCU PROFILE
(5305 = 1)