They actually have a page in their Knowledge base dealing with Slow Communications re V10 .... this may also help:
Knowledge Base Article #KBSS008
Last updated: June 10, 2003
Units are slow or not communicating using Helios10.
Part 1 - Get Timer Configuration
Run QCOM1 and QCOM2 from the testdisc or StarCom or StarComD from the Customer InfoPak. Take note of the COM port, Unit Id, and baud rate being used by the timer.
Part 2 - Configure COM port
Now configure your COM port using the Control Panel as follows (assumes Win95/98):
Click "Start", then "Settings", then "Control Panel". The Control Panel window will open.
Double click on the "System" icon (near the bottom). The "System Properties" property sheet will appear.
Click on the "Device Manager" tab.
Click on the plus (+) sign next the line that says "Ports (COM & LPT)".
Highlight the communications port that the timer is connected to as reported by QCOM1, QCOM2, or StarCom.
Click on the "Properties" button. The "Communications Ports Properties" property sheet will appear.
Click on the "Port Settings" tab.
Change the setting to match the following:
Bits per second: 2400
Data bits: 8
Parity: None
Stop bits: 1
Flow control : Xon/Xoff
Click the "Advanced..." button.
Make sure there is a check in the box that says "Use FIFO buffers".
Click "Ok".
Click "Ok".
Click "Ok".
Close the Control Panel window (X in upper right).
Part 3 - Change The Delay Setting
Click "Start", then "Run".
Type "regedit.exe" then click "Ok".
Click the plus (+) next to "HKEY_LOCAL_MACHINE".
Click the plus (+) next to "SOFTWARE".
Click the plus (+) next to "HELIOS".
Click the plus (+) next to "HELIOS10".
Click folder next to "UTILITY".
Right click on "QUESTAR DELAY", then click "MODIFY".
Type in ".1" to change setting (Recommended starting point).
Click "OK".
Close the Registry Editor window (X in upper right).
Part 4 - Restart Windows
Click "Start", then "Shut Down".
Select "Restart" and click "Ok".
All computers are different. We recommend that you run at this setting for at least a week. If there is no loss of communication, you want to lower the delay setting by .01 increments (IE, .09 .08 so on..) by following the procedures in PART 3, getting this number as low as you can get without any loss of communication. In doing this, you are optimizing the time it takes for the computer to send time to the timer. If you lose communication with the timer, increase the setting.
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