Low Voltage Products & Systems 99
ABB Inc. • 888-385-1221 • www.abb-control.com AC 1006.9 - 5/03
8:1 Overview
The PST softstarter has an interface on the front for connecting the ABB fieldbus
plug (eplug) which is used for fieldbus communication. Through this interface, it
is possible to control the softstarter, achieve status information, as well as upload
and down-load parameters.
The interface between the softstarter and the eplug is always the same. Indepen-
dent of softstarter size, it is possible to connect any fieldbus protocol in the
future since the protocol is defined in the eplug itself.
The following fieldbus protocols are available:
• AS-I
• DeviceNet
• Profibus DP
• Modbus (Available Fall 2003)
8:1.1 Required accessories
To connect the softstarter to a fieldbus system, the following accessories are
required:
• Fieldbusplug for appropriate protocol (check that the cable length is suffi-
cient).
• Connectors for bus connection.
• End plug (some protocols).
• Software for PLC set-up.
Chapter 8 - Fieldbus communication (option)
Figure 37: Principle of a fieldbus network with PST
softstarters connected
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PTCKey-Pad Fieldbus
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PTCKey-Pad Fieldbus
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