Westermo MD-63 - Manual (Page 4)

10 6071-2002
Switch settings MD-63
The MD-63 can through different
switch settings be adapted to a
variety of running conditions. To
set the switches, open the plastic
case by removing the top cover.
S2:1-5 S1:1-9
Selection of Turning time/
Transmission rate
0.4 ms ≤ 2400 bit/s
Turning
time
Transmission
rate
ON
1 2 3 4 5 6 7 8 9
S1
0.2 ms 4 800 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
0.1 ms 9 600 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
75 µs 14 400 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
50 µs 19 200 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
37 µs 28 800 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
25 µs 38 400 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
16 µs 62500 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
11 µs 93 750 bit/s
ON
1 2 3 4 5 6 7 8 9
S1
9 µs 115.2 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
6 µs 187.5 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
3 µs 375 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
2 µs 500 kbit/s
ON
1 2 3 4 5 6 7 8 9
S1
1 µs 1–1.5 Mbit/s
ON
1 2 3 4 5 6 7 8 9
S1
Selection of 2- or 4-wire
S1 4-wire
ON
1 2 3 4 5 6 7 8 9
S1 2-wire
ON
1 2 3 4 5 6 7 8 9
S1: 2-3 not used
Selections of bits
S1
9
ON
1 2 3 4 5 6 7 8 9
S1 10
ON
1 2 3 4 5 6 7 8 9
S1
11
ON
1 2 3 4 5 6 7 8 9
S1 *
ON
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.
Start bit
1 bit = 52µs
1 bit: 1/1 9200 = 52µs
Data rate 19 200
Transmitter active
Set the speed to 187.5 kbit/s
10x52µs = 520µs
↵
Example 19 200 bit/s