User guide

2–6 Installation
1203–5.5 September 1995
Switch SW2
Switch SW2 is used to select:
• baud rate
• parity
• number of stop bits
• point–to–point or multi–drop
• checksum mode (CRC or BCC)
SW2
O
F
F
O
N
8765 43 21
Parity
setting
Baud rate
selection
Stop bits
Point-to-point/multi-drop
Checksum mode
AB0399A
Use SW2–3, SW2–2, and SW2–1 to select the baud rate:
Switch Value
(Decimal)
SW2 Baud Rate
0
O
–
87654321
110
1
O
–
87654321
300
2
O
–
87654321
600
3
O
–
87654321
1200
4
O
–
87654321
2400
5
O
–
87654321
4800
6
O
–
87654321
9600
7
O
–
87654321
19200
Note: For DH–485, 1200, 2400, 9600, and 19200 are the allowed
baud rates. Selecting any other baud rate will cause the module to
indicate a fault. The module cannot operate in this state.
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