ABB FSCA-01, Руководство пользователя

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Overview
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Overview
Overview
The FSCA-01 RS-485 Adapter Module supports the Modbus/RTU
network protocol. This chapter contains a short description of
Modbus/RTU and the adapter module.
For information on RS-485 standard, see FSCA-01 RS-485
Adapter Module Hardware Manual (3AUA0000044521 Rev A
[English]).
Modbus/RTU
Modbus/RTU is a variant of the Modbus family of simple, vendor-
neutral communication protocols intended for supervision and
control of automation equipment. The Modbus/RTU
implementation in the FSCA-01 RS-485 Adapter Module is done
according to
Modbus Application Protocol Specification v1.1b .
You can find more information on the RTU transmission mode and
cabling in
MODBUS over serial line specification and
implementation guide V1.02 in www.modbus.org .
The supported Modbus commands are listed in chapter
Communication .
Modbus/RTU on FSCA-01 RS-485 Adapter Module
The FSCA-01 RS-485 Adapter Module is an optional device for
ABB Drives which enables the connection of the drive to an RS-
485 network. The module supports a variety of higher-level
communications protocols, including Modbus/RTU.
Through the FSCA-01 RS-485 Adapter Module it is possible to:
• give control commands to the drive
(Start, Stop, Run enable, etc.)
• feed a motor speed or torque reference to the drive