Switch settings ld-63 profibus, Description of y/v-mode, Selection of data rate number of units – Westermo LD-63 User Manual
Page 4: Selection of retiming, Selection y/v-mode
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Switch settings LD-63 Profibus
Selection of data rate
Number of units
ON
1 2 3 4 5 6 7 8 9
S1
Selection of retiming
ON
1 2 3 4 5 6 7 8 9
S1
Retiming
activated
ON
1 2 3 4 5 6 7 8 9
S1
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
ON
1 2 3 4 5 6 7 8 9
S1
Y-mode
ON
1 2 3 4 5 6 7 8 9
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
20
auto detect
ON
1 2 3 4 5 6 7 8 9
S1
20
9.6 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
20
19.2 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
20
93.75 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
20*)
187.5 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
20*)
500 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
20*)
1 500 kbit/s
S2:1-5
S1:1-9
*) With retiming
LA-01 Y
OR
OR
OR
LA-01 V
OR
F/O
V-function
channel 1
channel 2
channel 1
channel 2
Y-function
F/O
F/O
F/O
Profibus-DP/FMS
Profibus-DP/FMS
Description of Y/V-mode