ABB ACS550-02 User Manual page 158

156
For the 1xxxx registers:
• Additional discrete inputs are added sequentially.
The ACS550 supports the following Modbus function codes for discrete inputs:
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:
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.
The following table summarizes the 4xxxx drive control registers 40001...40099 (for
4xxxx registers above 40099, see the drive parameter list, e.g. 40102 is parameter
0102):
Modbus
Register
40001
40002
40003
40004
Start-Up
Function Code
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
Function Code
Read 3xxxx input status
ACS550
Standard Profile
( )
ABB DRIVES
CONTROL WORD
Reference 1
Reference 2
ABB DRIVES PROFILE
Description
Remarks
Description
Access
R/W Supported only if the drive is configured to use the ABB
Drives Profile (5305 = 0).
R/W Range = 0...+20000 (scaled to 0...1105
-20000...0 (scaled to 1105
R/W Range = 0...+10000 (scaled to 0...1108
-10000...0 (scaled to 1108
R This register is only supported if the drive is configured
to use the ABB Drives Profile (5305 = 0).
Remarks
1 ), or
REF MAX
1 ...0).
REF MAX
2 ), or
REF MAX
2 ...0).
REF MAX