226 Fieldbus control through the embedded fieldbus interface (EFB)
Basics of the embedded fieldbus interface
The cyclic communication between a fieldbus system and the drive consists of 16-bit
data words or 32-bit data words (with a transparent control profile).
The diagram below illustrates the operation of the embedded fieldbus interface. The
signals transferred in the cyclic communication are explained further below the
diagram.
Control word and Status word
The Control Word (CW) is a 16-bit or 32-bit packed boolean word. It is the principal
means of controlling the drive from a fieldbus system. The CW is sent by the fieldbus
controller to the drive. With drive parameters, the user selects the EFB CW as the
source of drive control commands (such as start/stop, emergency stop, selection
CW
SW
ACT1
ACT2
I/O 1
I/O 2
I/O 3
…
I/O 69
EFB CW
EFB SW
Actual 1
Actual 2
Par. 01.01…255.255
1. See also other parameters which can be controlled through fieldbus.
2. Data conversion if parameter
is set to
).
1)
Fieldbus network
Data I/O
selection
Start commands
Cyclic communication
Acyclic communication
SEL
2)
Parameter
table
0
1
2
3
SEL
0
1
2
3
2)
EFB profile
ACQ80 FW.book Page 226 Thursday, February 14, 2019 11:33 AM
Содержание ACQ80-04 Series
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Страница 10: ...10 Table of contents ACQ80 FW book Page 10 Thursday February 14 2019 11 33 AM ...
Страница 16: ...16 Introduction to the manual ACQ80 FW book Page 16 Thursday February 14 2019 11 33 AM ...
Страница 26: ...26 Start up control with I O and ID run ACQ80 FW book Page 26 Thursday February 14 2019 11 33 AM ...
Страница 28: ...28 Using the control panel ACQ80 FW book Page 28 Thursday February 14 2019 11 33 AM ...
Страница 54: ...54 Program features ACQ80 FW book Page 54 Thursday February 14 2019 11 33 AM ...
Страница 196: ...196 Additional parameter data ACQ80 FW book Page 196 Thursday February 14 2019 11 33 AM ...
Страница 220: ...220 Fault tracing ACQ80 FW book Page 220 Thursday February 14 2019 11 33 AM ...
Страница 260: ...260 Fieldbus control through a fieldbus adapter ACQ80 FW book Page 260 Thursday February 14 2019 11 33 AM ...
Страница 264: ...264 Parameterization with drive composer ACQ80 FW book Page 264 Thursday February 14 2019 11 33 AM ...
Страница 268: ...268 Parameterization with automation builder drive manager ACQ80 FW book Page 268 Thursday February 14 2019 11 33 AM ...