Rockwell Automation 2708-DH5B2L_DH5B4L Attended Workstation - Manual (Page 24)

Chapter 2
Installing a Network
2–11
Connect the WORKSTATION COM1 Port to the Host computer using a
cable wired according to the pin-out diagrams shown in Appendix D. To
communicate to the Host computer, it is necessary to be able to make your
computer send and receive ASCII characters in an asynchronous
communication manner. If a personal computer is used, programs such as
PROCOMM
R
, and KERMIT are ideal for this purpose. Most
ASYNCHRONOUS TERMINAL EMULATION PROGRAMS will work.
The communication set-up parameters must be the same for both the
computer and the workstation terminal. Please see Appendix B, Menu
Trigger Keys, for the procedure to enter the workstation menu mode.
If the program is resident in the workstation, press the menu trigger keys
(Enter and Right Arrow simultaneously), disconnect power, then reconnect
power while holding down the Enter and Right Arrow keys simultanenously
to enter the workstation menu mode.
1. In the menu mode
1—Network
Menu
will appear.
Press ENTER; “Terminal Number” will appear.
Press 1, then ENTER; “Terminal Type” will appear.
Press < – until the terminal type changes to “Master”,
then press ENTER, then press EXIT.
2. Press the < –, until “2-Comm Port Menu” appears. Press ENTER;
“Comm Port Mode” will appear.
Press < – until the mode changes to “XON/XOFF”.
①
Press ENTER; and “Comm Baud Rate” will appear.
3. Press < – until the baud rate is the SAME AS THE BAUD RATE
SELECTED ON THE HOST COMPUTER. 9600 and 1200 are the most
common baud rates.
②
In some cases NO character will show up if the
baud rate is improperly set.
Press ENTER; “Comm Data Bits” will appear.
4. Press < – until the Data Bits are the same as the Host computer. This is
normally 7.
Press ENTER “Comm Parity” will appear.
① For testing the cable connections, use XON/XOFF. If you are using a data collection program such as Network
Manager Software (Catalog No. 2708-NNM), you may have to change this to “POLLED” before using such
programs.
② If the baud rate is incorrectly set, when your computer sends characters to the workstation, unpredictable
characters will show up on the display when you are in “COMM RECEIVE TEST” mode. In some cases NO
character will show up if the baud rate is improperly set.
Communication to the
Host Computer