Westermo LD-63 User Manual download pdf (Page 4)

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Switch settings LD-63 Profibus

Selection of data rate

Number of units

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Selection of retiming

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Retiming

activated

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Retiming

inactivated

Retiming implies that the incoming data on fibre side will be

retimed to an exact bitlength depending on configured

transmission speed. This gives the possibility to connect an

increased number of units in serie. Retiming is only possible

at adjustable speeds and not at ”auto detect mode”.

Selection Y/V-mode

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S1 Y-mode

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S1 V-mode

Number of units is depending on the data rate and the

total system. Retiming (see S1:2) increases the number of

possible units but also introduces a delay in the system.

”Number of units” means a typical value that can be

changed depending on the structure of the total system.

Number

of units

Data

rate

20auto detect

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209.6 kbit/s

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2019.2 kbit/s

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2093.75 kbit/s

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20*)187.5 kbit/s

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20*)500 kbit/s

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20*)1 500 kbit/s

S2:1-5

S1:1-9

*) With retiming

LA-01 Y

LA-01 V

F/O

V-function

channel 1 channel 2

Y-function

F/O

F/O F/O

Profibus-DP/FMS

Description of Y/V-mode

1 2 3 4 5 6 7 8 9 10

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Westermo LD-63 User Manual Page 4

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