Connecting
Most computer operating systems (e.g., Windows, macOS, Linux, etc.) have built-in terminal
programs that can be used to type in the commands that run the pump. On Windows XP and
earlier, HyperTerminal can be used to control to the pump. On macOS and Linux, the screen
command in Terminal can also be used to control the pump. There are also numerous third-
party programs for serial connections that exist for each operating system that may be easier to
use and provide more features. A third-party program will be necessary to connect with
computers running Windows Vista and later.
For tips on operating the built-in terminal programs and information on available third-party
programs, please visit www.chemyx.com/support.
Settings
Regardless of the operating system being used, the terminal program controlling the serial
connection should use the following connection settings:
The baud rate setting for the serial connection must match the baud rate set in the pump
settings GUI (See Baud Rate in System Settings).
Generally, the pump should be set to use the higher baud rate (38400) if a USB-only connection
is used. However, if a DB9-only or USB-to-DB9 connection is used, the baud rate must be set to
9600.
Typically, if the baud rate is not set correctly, there will be garbled or no response to any
commands.
Pump Commands
Within the terminal program on the computer, the following commands can be entered to set
parameters or control the pump:
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