Comtrol Multiport Modems Windows NT - Manual (Page 37)

Comtrol Tools 37
Using Port Monitor
Using Port Monitor
The Port Monitor program (portmon.exe) offers a summary of all Comtrol device
statistics in one spreadsheet view. It also enables you to verify operation of all
Comtrol device ports from a single window.
The Port Monitor display follows the familiar spreadsheet model: each COM port
is a horizontal row, and each vertical column displays a variable or value for the
respective COM port. For definitions of the abbreviations used, see
Port Monitor
Variables on Page 41.
Port Monitor can also produce statistics and reports that can help you verify the
operation of the COM ports and connected peripherals. Some immediate feedback
includes:
• The state of the modem control and status signals
• Open ports
• Raw byte input and output counts obtained from the device driver
• Port errors
The available statistics include:
• Instantaneous characters per second (CPS) calculations
• Minute, hour, and day CPS averages and peaks
• Carrier detect (CD) signal runtime and transition count
Reports can be automatically generated on an hourly and/or daily basis, and can
cover all ports collectively or a separate report for each port. You can also set how
often the values are recalculated, fine-tuning thoroughness against system
efficiency, and automatically run external batch files to perform additional
processing and analysis.
Starting Port
Monitor To run Port Monitor, select Port Monitor (or Portmon.exe) from the appropriate
Comtrol program group.
The Port Monitor window appears:
Note: To change the appearance of the window, see the following discussion.
Product
Operating
System
Program Group
RocketModem and
RocketPort Windows 98,
Windows NT Comtrol RocketPort RocketModem
Port Monitor
RocketModem and
RocketPort Windows 2000,
Windows XP Comtrol Utilities Portmon
Portmon.exe
DeviceMaster RTS,
RocketPort Serial Hub ia,
and RocketPort Serial
Hub Si Windows 98,
Windows NT,
Windows 2000,
Windows XP
Comtrol NS-Link Port Monitor