Instruction manual

IM-50 Rev. A.2 41
SELECTING THE COMMS PORT USING DEVICE MANAGER
The program must be set up to communicate with your unit depending on whether it utilizes RS-232 or
RS-485 (Optional) communications protocol. It is IMPORTANT that you properly set up
communications between the computer and instrument based on whether the instrument has RS-232
(also called Serial) or RS-485. The instruments’ communication type is listed on the Data Label on the
back of the unit and additionally on the Calibration Certificate, if ordered. In order to identify the
communications port the 50 series is using, perform the following steps:
1. Identify the Communications Port
• Windows XP or Older
o Left Click Start Button > Left Click Control Panel.
o Double Left Click ‘System.’
o Left Click Hardware Tab, Left Click ‘Device Manager’ dialog button.
o Expand Root Menu ‘Ports (COM & LPT)’ by Left Clicking arrow left of name. It will
look like this:
o Identify port to be used by the 50 series.
• Windows 7
o Right Click on ‘Computer’ in the Start Menu, then Left Click ‘Properties’ from there,
‘Device Manager’ is listed in the left-hand frame menu. NOTE: Device Manager links
look like this in Win7:
o Left Click ‘Device Manager’ dialog button and expand the root menu and continue as
with the Windows XP steps above
2. Enter the Communications Port into the User Program
Below is the communications setup screen for the provided user software. If the unit utilizes RS-
232, follow the left screen shot. If the unit utilizes RS-485, follow the right screen shot. ENTER
THE COM PORT INDENTIFIED ABOVE IN THE “Select Port to use” pull-down menu:
If your unit is RS-485, you’ll want to match the Device Address, Baud Rate and Parity to that of
your instrument (default settings are shown below). Once you have established communication,
you can change the Device Address, Baud Rate, and Parity to set up the instrument for use on
your RS-485 Bus system.