ABB DriveIT ACH550-01 User Manual page 151

ACH550 User's Manual
Communication profiles
When communicating via the plug-in fieldbus adapter, the
ACH550 supports multiple profiles for control and status
information. The ACH550 detects automatically which
communication profile is used by the plug-in fieldbus adapter.
• ABB DRIVES (Vendor Specific) - The ABB Drives Profile
standardizes the control interface among ABB drives. This
profile is based on the PROFIBUS interface, and is
discussed in detail in the ABB Drives Profile section below.
• GENERIC DRIVE (Drive Profile) - The Generic Drive Profile
provides the means to fulfil the drive profile for each fieldbus
type according to its international standard. Examples of
such drive profiles are:
- PROFIdrivefor PROFIBUS,
- AC/DC Drivefor DeviceNet,
- DRIVECOMfor InterBus etc.
The Generic Drive Profile interface is discussed in detail in the
Generic Profile section below.
ABB Drives Profile
The ACH550 supports a virtual data set interface supporting two
data sets, one in each direction. Each data set consists of three
16-bit words called data words. The meaning and scaling of the
data words is fixed.
The mapping of the data words to the process data is realized by
means of the parameters in group 51 using the values 1 to 6 as
shown in the table below. However certain fieldbus protocols
(like PROFIBUS) have a fixed allocation for data words 1, 2, 4
and 5. Refer to the fieldbus user's manual for a detailed
description on the mapping of process data.
Process data from fieldbus controller to drive (Data set 1)
Data word
1
2
3
Serial communications
Contents
Control word
Reference 1
Reference 2
147