Switch Sw1 - Allen-Bradley Bulletin 1203 Series User Manual

Switch SW1

Switch SW1 is used to select:
serial communications mode (RS–232/RS–422/RS–485/DH–485)
Serial Communications Module address
SW1
O
F
F
O
N
8 7 6 5 4 3
Communications
Module Address
Use SW1–1 and SW1–2 to select the communications protocol you
are using:
Switch Value
SW1
(Decimal)
O
0
–
8 7 6 5 4 3 2 1
O
1
–
8 7 6 5 4 3 2 1
O
2
–
8 7 6 5 4 3 2 1
O
3
–
8 7 6 5 4 3 2 1
Installation
2 1
Protocol
Selection
AB0398B
Protocol
RS–232 (DF1 protocol)
RS–422 (DF1 protocol)
RS–485 (DF1 protocol)
DH–485
1203–5.5 September 1995
2–3