ABB ACS880 - Communication

Communication
The communication between the controller and the drive consists of data sets of three
16-bit words each. The controller sends a data set to the drive, which returns the next
data set to the controller.
The communication uses data sets 10…33. The contents of the data sets are freely
configurable, but data set 10 typically contains the control word and one or two
references, while data set 11 returns the status word and selected actual values. For
ModuleBus communication, the ACS880 can be set up as a “standard drive” or an
“engineered drive” by parameter 60.50. ModuleBus communication uses data sets 1…4
with a “standard drive” and data sets 10…33 with an “engineered drive”.
The word that is defined as the control word is internally connected to the drive logic;
the coding of the bits is as presented in section Contents of the fieldbus Control word
(ABB Drives profile) (page 615). Likewise, the coding of the status word is as shown in
section Contents of the fieldbus Status word (ABB Drives profile) (page 617).
By default, data sets 32 and 33 are dedicated for the mailbox service, which enables
the setting or inquiry of parameter values as follows:
Parameter write to drive
Transmit address
Value = 4865*
Transmit data
Value = 1234
Transmit addrss
feedback
Value = 4865*
Parameter read from drive
Inquire address
Value = 6147**
Inquire data
Value = 4300
Inquire address
feedback
Value = 6147**
Data set
32.1
Data set
32.2
Data set
33.1
Data set
32.3
Data set
33.2
Data set
33.3
Par.
Value
19.01
1234
1
24.03
4300
.
.
.
.
.
.
.
.
Controller
ACS880
*19.01 → 13h.01h → 1301h = 4865
**24.03 → 18h.03h → 1803h = 6147
By parameter 60.64, data sets 24 and 25 can be selected instead of data sets 32 and
33.
44 Program features