Fieldbus control through the embedded fieldbus interface (EFB) 221
9
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.
ACQ80 FW.book Page 221 Thursday, February 14, 2019 11:33 AM
Содержание ACQ80-04 Series
Страница 4: ...4 ACQ80 FW book Page 4 Thursday February 14 2019 11 33 AM ...
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 ...