![ABB ACS880-01 Series Скачать руководство пользователя страница 634](http://html.mh-extra.com/html/abb/acs880-01-series/acs880-01-series_firmware-instructions_2621634.webp)
634 Fieldbus control through a fieldbus adapter
Control word and Status word
The Control word is the principal means for controlling the drive from a fieldbus
system. It is sent by the fieldbus master station to the drive through the adapter
module. The drive switches between its states according to the bit-coded instructions
in the Control word, and returns status information to the master in the Status word.
For the ABB Drives communication profile, the contents of the Control word and the
Status word are detailed on pages
respectively. The drive states are
presented in the state diagram (page
).
When a transparent communication profile is selected eg. by parameter group
, the control word received from the PLC is available in
. The individual bits of the word can then be used for drive
control through bit pointer parameters. The source of the status word, for example
Debugging the network words
is set to
, the Control word received from
the fieldbus is shown by parameter
, and the Status word
transmitted to the fieldbus network by
. This “raw” data is
very useful to determine if the fieldbus master is transmitting the correct data before
handing control to the fieldbus network.
References
References are 16-bit words containing a sign bit and a 15-bit integer. A negative
reference (indicating reversed direction of rotation) is formed by calculating the two’s
complement from the corresponding positive reference.
ABB drives can receive control information from multiple sources including analog
and digital inputs, the drive control panel and a fieldbus adapter module. In order to
have the drive controlled through the fieldbus, the module must be defined as the
source for control information such as reference. This is done using the source
selection parameters in groups
and
Debugging the network words
is set to
, the references received from
the fieldbus are displayed by
and
Scaling of references
Note:
The scalings described below are for the ABB Drives communication profile.
Fieldbus-specific communication profiles may use different scalings. For more
information, see the manual of the fieldbus adapter.
Содержание ACS880-01 Series
Страница 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 20: ...20 Introduction to the manual ...
Страница 22: ...22 Using the control panel ...
Страница 28: ...28 Control locations and operating modes ...
Страница 145: ...Application macros 145 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 146: ...146 Application macros ...
Страница 502: ...502 Parameters ...
Страница 606: ...606 Fault tracing ...
Страница 662: ...662 Control chain diagrams ...
Страница 664: ...Contact us www abb com drives www abb com drivespartners 3AXD50000041193 Rev A EN EFFECTIVE 2017 06 30 ...