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Fieldbus control through the embedded fieldbus interface (EFB) 607
11
Fieldbus control through the
embedded fieldbus interface
(EFB)
What this chapter contains
The chapter describes how the drive can be controlled by external devices over a
communication network (fieldbus) using the embedded fieldbus interface.
System overview
The drive can be connected to an external control system through a communication
link using either a fieldbus adapter or the embedded fieldbus interface.
The embedded fieldbus interface supports the Modbus RTU protocol. The drive
control program can handle 10 Modbus registers in a 10-millisecond time level. For
example, if the drive receives a request to read 20 registers, it will start its response
within 22 ms of receiving the request – 20 ms for processing the request and 2 ms
overhead for handling the bus. The actual response time depends on other factors as
well, such as the baud rate (a parameter setting in the drive).
The drive can be set to receive all of its control information through the fieldbus
interface, or the control can be distributed between the embedded fieldbus interface
and other available sources, for example, digital and analog inputs.
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 ...