Ramsey Electronics COM3010 User Manual page 84

DETAILED INFORMATION
3. To enter the Options Screen.
4. Selects Serial Options.
5. Use the
6.
7. Press
This meter will normally only be used to troubleshoot communications problems.
8. Type "SYS OPEN 555" [ENTER] (No quotes) in the terminal software
9. The COM3010 should respond with "Welcome from unit 555" and give you an access
prompt of ">>".
Problems?
If the COM3010 does not respond but the Rx light flickers as you type, there can be two pos-
sible problems. The first is that you have the COM3010 set to an address other than 555 from
a previous session. You will have to use the previously set address instead of the default 555
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address. The addresses are set up to run multiple COM3010s from the same serial lines so
only one addressed COM3010 will respond at a time.
The other issue is a problem with the HyperTerminal software in Windows when you use no
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Flow Control. HyperTerminal will not turn off the Flow Control setting for the serial port
unless you go through the following procedure:
1. Set the COM3010 baud rate for 9600:8,n,1 (See previous example)
2. Disconnect HyperTerminal (Using the Off-Hook Phone Icon).
3. Set the appropriate COM port in HyperTerminal, but a different baud rate than what you
plan to use. To access the properties screen go to File->Properties->Connect To and
select the COM port, then Configure... Press OK.
4. Hit Enter three times; you should see the Rx icon twinkle and the Er icon may illuminate
on the COM3010.
5. Disconnect again (Using the Off-Hook Phone icon).
6. Go back to File->Properties->Connect To then Configure... and set baud rate back to
9600. Press OK.
7. Type "SYS OPEN 555" [ENTER] (No quotes) in the terminal software
8. The COM3010 should respond with "Welcome from unit 555" and give you an access
prompt of ">>".
9. Type "SYS CLOSE" [ENTER]
10. The COM3010 will reply with "Disconnecting, Bye."
11. Save the HyperTerminal session.
Using this saved session will allow you to bypass the above procedure in future communica-
tions. If you start a totally new HyperTerminal Session the above procedure will be required
buttons to select 9600 baud.
to exit, save changes, and return to Operational Mode.
several times until the serial status is displayed on the COM3010.
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