Serial Communications
6-1
March 2008
Introduction
The Model GS868 flowmeter is equipped with a standard RS232
serial interface. By using this interface, any log files stored in the
GS868’s memory may be easily uploaded to a personal computer. In
order to accomplish this, the following steps must be completed:
•
Connect the GS868 to the personal computer
•
Check the GS868 baud rate setting
•
Set up the personal computer’s terminal software
•
Transfer the log files to the personal computer.
Wiring the RS232
Interface
The first step is to connect the built-in RS232 port in the GS868 to
one of the serial ports (COM1 or COM2) on the personal computer.
Table 6-1 below lists the standard cables available from the factory
for this purpose.
Each of the cables listed in Table 6-1 above is available in several
standard lengths. However, a user-supplied cable may be used, if
preferred. In either case, wire the GS868 end of the serial cable in
accordance with the pin designations listed in Table 6-2 below.
Note:
For basic serial communications between a single GS868 and
a single personal computer, no connections are required to
pins 4 and 5 of the GS868’s serial connector. However, these
pins should be jumpered together to ensure proper operation.
Table 6-1: GE Serial Cables
Part Number
PC Connector
GS868 Connector
704-659
DB25 Male
Flying Leads (5)
704-660
DB9 Male
Flying Leads (5)
704-661
DB25 Female
Flying Leads (5)
704-662
DB9 Female
Flying Leads (5)
Table 6-2: RS232 Pin Connections
GS868
Pin #
GE
Cable Color
DB25 Cable
Pin #
DB9 Cable Pin
#
1 (RTN)
Green
7
5
2 (TX)
Black
3
2
3 (RX)
Red
2
3
4 (DTR)
White
20
4
5 (CTS)
Yellow
5
8
Summary of Contents for DigitalFlow GS868
Page 7: ...Chapter 1 ...
Page 59: ...Chapter 2 ...
Page 77: ...Chapter 3 ...
Page 90: ...Chapter 4 ...
Page 104: ...Chapter 5 ...
Page 110: ...Chapter 6 ...
Page 122: ...Appendix A ...
Page 131: ...Appendix B ...
Page 132: ...Data Records Option Cards Installed B 1 Initial Setup Data B 2 ...
Page 136: ...Appendix C ...
Page 156: ...Appendix D ...