Greyline Instruments DFM-IV - RS485 SERIAL OUTPUT

RS485 SERIAL OUTPUT
(Replaces standard RS232 Output with Data Logger option.)
Permits transfer of optional Data Logger reports on wire lengths up to 4000 ft. (1220 m).
Format: 8 Bits, 1 Stop Bit, No Parity. (Baud rate may be changed under the
SPECIAL FUNCTIONS
menu. Factory default is 19200 baud).
Use shielded, 4-conductor cable (Greyline cable option SC-18AWG recommended). Connect the cable
shield to Ground at the DFM-IV electronics enclosure and do not connect to Ground at the other end.
Configure the Greyline software program for RS485 communications. Under the Communications /
Connection Setup menu, select 'Connected to a Greyline 485OI-12V adaptor'.
4850I9TB-12V
RS232/RS485 Converter
Use with optional RS485 output for connection to a PC
computer or modem.
•
Optically isolates and protects your computer's RS232
port
•
Terminal block for RS485 connections
•
Operates from 2400 up to19.2K baud
DB9M/DB9F - RS232 Cable
Connects RS232/485 Converter to a PC
Cable length 6 ft. (2 m) with DB9M and DB9F connectors.
DFM-IV Doppler Flow Meter
Manual Series A.6
Page 38
Greyline
Transmitter
with
RS485 Output
RS485 <4000 ft (1220 m)
Detail
RX
RS485
PU
GND
TX
(GREEN)
(WHT)
(BLK)
(RED)
18AWG, 4-conductor, shielded
Option: SC-18AWG
DB9F
DB9M
RS232 Cable
Option: DB9M/DB9F
6ft(2m)
RS232/485 Converter
Option: 485OI9TB-12V
RX
TX
GND
PU
RS485
RS232
DB9F