7ML19985DJ01 Milltronics BW100 - INSTRUCTION MANUAL Page 47
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Operation
Communications
The BW100 bipolar current loop provides long distance communication to a customer
device.
The BW100 communication port (TB1-21 to 25) is software set for baud (P751) and mode
enable (P760). Refer to
Installation/Communication
on page 14
for wiring details.
Protocol
Protocol refers to the format, sequence and value of the data fields used in
communication messages. Each data field of a BW100 message contains one or more
bytes of ASCII binary code.
Note: If communicating via Milltronics Dolphin software, the baud rate must be
set to 4800.
BW100
host
device
Bipolar
Converter
Each byte contains:
» 8 data bits
» no parity bit
» 1 stop bit
0
– 20 mA
+ 20 mA
s
t
a
r
t
1
s
t
2
n
d
3
r
d
4
t
h
5
t
h
6
t
h
7
t
h
8
t
h
s
t
o
p
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