Westermo LD-63 AC Manuel D'installation page 10

Switch settings LD-63
Selection of V or Y function
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
V-function and Y-function are described
on page 11.
Selection of retiming function
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
The retiming function calculates the exact bit-
length based on the speed set and recreates
the signal. This allows for more units in series.
The retiming works only for the indicated
speeds. For other speeds (e g 1.2 Mbit/s)
retiming can not be used.
Selection of bits
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
*) Use this setting for synchronous
protocols.
The transmitter will be active from the
start bit to 10 bit-times after the last
high databit
(see example below).
The speed shall be set to ≅ 10 times
the required communication speed.
Example 19 200 bit/s
Start bit Data rate 19 200
1 bit: 1/19 200 = 52µs
1 bit = 52µs
Transmitter active 10x52µs = 520µs
Set the speed to 187.5 kbit/s
10
All manuals and user guides at all-guides.com
Number of units connected in serie
Y
ON
V
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
Retiming
ON
S1
1 2 3 4 5 6 7 8 9
Retiming of
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
9
S1
1 2 3 4 5 6 7 8 9
ON
10
S1
1 2 3 4 5 6 7 8 9
ON
11
S1
1 2 3 4 5 6 7 8 9
ON
*
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
ON
S1
1 2 3 4 5 6 7 8 9
*) For additional units
please contact
Westermo
When using RS-232 interface it is not necessary to
select number of bits and transmission rate. The RS-232
interface can handle transmission rates from 0 up to
115.2 kbit/s.
Turning/Transmission/
Turning- Transmission
time
rate
0.4 ms 2 400 bit/s
0.2 ms 4 800 bit/s
0.1 ms 9 600 bit/s
75 µs 14 400 bit/s
50 µs 19 200 bit/s
37 µs 28 800 bit/s
25 µs 38 400 bit/s
16 µs 62 500 bit/s
11 µs 93 750 bit/s
9 µs 115.2 kbit/s
6 µs 187.5 kbit/s
3 µs 375 kbit/s
2 µs 500 kbit/s
1 µs 1.0 Mbit/s
0,7 µs 1.5 Mbit/s
Retiming
possible
Number*
of units
20
20
20
20
20
20
20
20
20
15
10
5
20
10
4
6072-2004