Westermo MD-45 AC Manuel D'installation page 9

Selection of data rate
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
Data or RTS-control
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
Factory settings
ON
S1
1 2 3 4 5 6 7 8
ON
S2
1 2 3 4
S1: 8 not used
6157-2001
Data Turning
rate time
1 200 780 µs
2 400 410 µs
4 800 220 µs
9 600 130 µs
19 200 48 µs
38 400 34 µs
57 600 22 µs
115 200 11 µs
Data control
RTS-control
Selection of bits
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
2/4-wire transmission
ON
S1
1 2 3 4 5 6 7 8
ON
S1
1 2 3 4 5 6 7 8
Termination with fail-safe *
ON
S2
1 2 3 4
ON
S2
1 2 3 4
ON
S2
1 2 3 4
* The fail-safe function forces the signal state of
the receiver to OFF when the connected
transmitter is in tri-state (transmitter inactive).
The receiver located furthest away shall be
terminated.
Supervision table when selecting data bits
• •
7 bits
8 bits
• •
No parity
Parity
•
1 stop bit
•
2 stop bits
Number of bits 9 10
9
10
11
12
2-wire
4-wire
Terminated (4-wire)
Terminated (2-wire)
No termination
• •
• • •
• •
• • •
• • •
• •
10 10 11 11 11
•
•
•
12
9