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 Reference, Installation, and Operations Manual
Section 5: Startup and meter configuration
3-9000-743 Rev S
June 2013
RS-232 serial connection setup
 111
5.5.1
RS-232 serial connection setup 
RS-232 serial initial connection material checklist
To complete the steps in the subsections that follow, obtain the following materials and 
information:
Ultrasonic serial cable (Daniel P/N 3-2500-401)
Wiring Diagram (Daniel drawing DE-21056 
)
Personal computer (PC) with Daniel MeterLink software installed (version 3.0 or higher)
Desired Mark III meter(s) communication configuration parameters:
IP address (if desired)
Serial communication parameters such as baud rate and Modbus ID
RS-232 serial initial connection steps
1.
Power up the Mark III meter and the PC.
2.
Plug the DB-9 end of the cable directly into the PC running Daniel MeterLink. The three 
wires on the other end of the cable connect to J7 (FTB) for Port B. The Digital Out wire 
goes to J7-Pin 1, the Digital In wire goes to J7-Pin 2, and the COMMON wire goes to J7-
Pin 3.
3.
Start the Daniel MeterLink program on the PC and create a new meter directory record 
with the following parameters:
a.
Select 
Meter Type
 as Mark III.
b.
Check the 
Direct
 box and uncheck the 
Modem
 and 
Ethernet
 boxes.
c.
Set the Direct connection properties for 
Baud Rate
 of 19200 and 
Comms Address
 
(Modbus ID) of 32.
These instructions involve setting Mark III switches. Refer to 
 for further 
information on switch settings.
Refer to 
 for communication troubleshooting information.