Fieldbus Control Interface - ABB DriveIT ACH550-01 User Manual

ACH550 User's Manual

Fieldbus control interface

The basic control interface between the fieldbus system and the
drive consists of the control word, speed reference, status word
and actual speed or frequency. Depending on the type of plug-in
fieldbus adapter additional process data can be defined by
means of the parameters in group 51 or by means of fieldbus
specific parameters accessible via the network (refer to the
Fieldbus user's manual). The maximum amount of process data
is limited to 15 words. The actual amount of process data
supported by the plug-in fieldbus adapter module is fieldbus
adapter type dependent.
Process data from fieldbus
controller to drive
Output word Contents
1 Process data 1
2 Process data 2
3 Process data 3
4 Process data 4
5 Process data 5
6 Process data 6
7 Process data 7
8 Process data 8
9 Process data 9
10 Process data 10 10
11 Process data 11 11
12 Process data 12 12
13 Process data 13 13
14 Process data 14 14
15 Process data 15 15
Note that the word 'output' is used to describe data flow from the
fieldbus controller to the drive and the word 'input' is used to
describe data flow from the drive to the fieldbus controller. In
Serial communications
Process data from drive to
fieldbus controller
Input word
1
2
3
4
5
6
7
8
9
Contents
Process data 1
Process data 2
Process data 3
Process data 4
Process data 5
Process data 6
Process data 7
Process data 8
Process data 9
Process data 10
Process data 11
Process data 12
Process data 13
Process data 14
Process data 15
145