ABB ACS550 User Manual page 205

ACS550 User's Manual
Modbus
ref.
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
1
= Active low
For the 1xxxx registers:
• Additional discrete inputs are added sequentially.
The ACS550 supports the following Modbus function codes for discrete inputs:
Function code
02
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:
Modbus
reference
30001
30002
The ACS550 supports the following Modbus function codes for 3xxxx registers:
Function code
04
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.
Internal location
(all profiles)
– Bit 27
STATUS WORD
– Bit 28
STATUS WORD
– Bit 29
STATUS WORD
– Bit 30
STATUS WORD
– Bit 31
STATUS WORD
1
DI
2
DI
3
DI
4
DI
5
DI
6
DI
Description
Read input status
ACS550
all profiles
1 This register shall report the level of Analog Input 1 (0...100%).
AI
2 This register shall report the level of Analog Input 2 (0...100%).
AI
Description
Read 3xxxx input status
ABB DRV
(5305 = 0 2)
OR
Reserved
Reserved
Reserved
Reserved
Reserved
DI1
DI2
DI3
DI4
DI5
DI6
Remarks
205
DCU PROFILE
(5305 = 1)
REQ_REF1
REQ_REF2
REQ_REF2EXT
ACK_STARTINH
ACK_OFF_ILCK
DI1
DI2
DI3
DI4
DI5
DI6
Embedded fieldbus