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Wolf Series RS-485 Remote I/O Module
Wolf series Remote IO Module User's Manual
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2.4 System Configuration
Wolf series modules are all connected in parallel by cables. Thus, failing of one
segment does not affect the entire network system. The modules applied are based on
RS485 interface and MODBUS protocol. When communicating via host or terminal is
required, RS485 would be taken in consideration in term of different system
architecture. Star topology, daisy chain and random topology will be briefed in the
next sections.
2.4.1 Daisy Chain
In each segment, the last node to connect modules must be repeater, with another
end connected to the main cable, it served as an important medium. Each repeater can
be connected by 32 modules at most, otherwise, the low current might result in
communication error.
Содержание Wolf Series RS-485
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