454 Fieldbus control through the embedded fieldbus interface (EFB)
The Transparent profile
The Transparent profile enables a customizable access to the drive.
The contents of the control word are user-definable. The control word received from
the fieldbus is visible in parameter 06.05 EFB transparent control word, and can be
used to control the drive using pointer parameters and/or application programming.
The status word to be sent to the fieldbus controller is selected by parameter 58.30
EFB status word transparent source. This can be, for example, the user-configurable
status word in 06.50 User status word 1.
The Transparent profile involves no data conversion of the control or status word.
Whether references or actual values are scaled depends on the setting of parameters
58.26…58.29. The references received from the fieldbus are visible in parameters
03.09 EFB reference 1 and 03.10 EFB reference 2.
The Modbus holding register addresses for the Transparent profile are as with the
ABB Drives profile (see page 453).
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