ABB FSCA-01, Руководство пользователя

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Communication profiles
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ABB Drives communication profile
Control Word and Status Word
The Control Word is the principal means for controlling the drive
from a fieldbus system. The fieldbus client station sends the
Control Word to the drive through the adapter module. The drive
switches between its states according to the bit-coded instructions
of the Control Word and returns status information to the client in
the Status Word.
The contents of the Control Word and the Status Word are
detailed in Tables
7 and 8 respectively. The drive states are
presented in the ABB Drives profile state machine (Figure 9 ).
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 analogue and digital inputs, the drive control panel and a
communication module (eg, the FSCA-01 RS-485 Adapter
Module). To have the drive controlled through the fieldbus, the
module must be defined as the source for control information, eg,
Reference.