Emerson DIXELL XWEB5000 PRO Installing And Operating Instructions page 11

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Do not branch into the line:
Correct
Mistaken
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Keep the serial cable away f rom power cables and any possible source of electromagnetic
disturbance. Mount the supplied ferrites on the serial ports as shown in the figure
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Do not connect the shield of the serial cable to the earth of the electrical system
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Do not connect the "Gnd" terminal.
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Draw a map of the installation you are performing: it will be useful both in case of pro blems and in
case of future changes; the serial line must reach all the stations where t he ins trument s must be
controlled.
On the same line, each controller is normally programmed with its own unique serial address, t hrough t he
Adr parameter. Refer to the installation manual of the instrument its elf f or t he acc ess and modif ic ation
procedure. To obtain a simple description of the categories to which they belong, divide the programming of
the addresses progressively. Some special cases are listed on the following pages.
To keep the RS485 line balanced, the ends must be terminated with a 1500Ω resistor. If the XWEB is at one
end of the RS485 line, it is advisable to insert the 120Ω termination resistor on the last instrument and on the
1592010820 XWE B5000 PRO STP GB r1.0 25.11.2020.docx XWEB5000 P RO 11/20