Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 96)

5–7 Communications Overview
Publication 2706-817
Using the Comms. Setup button
The Comms. Setup button in the Terminal Setup dialog allows you to
configure communication parameters for the RS-232 port on the
terminal.
This dialog may be accessed only when the terminal specified in the
Terminal Setup dialog is a slave device or is controlled by an ASCII
Triggering device (Catalog Nos. 2706-M1D, -M1N and -M1F).
When the MessageView terminal communicates with an ASCII
Triggering device or acts as a slave to a master device, it uses the
same RS-232 port that Message Builder software uses to download
the application, but the port parameters may be different.
•
See Page 10–9 for the procedure to configure the RS-232 port to
communicate with one of these devices.
•
See Page 5–3 for an outline of the procedure the terminal
operator uses to switch from one set of port parameters to the
other.
Note: Parameters for communication between the MessageView
terminal and the computer are built in to the terminal firmware, and
cannot be edited.
ASCII Triggering device
An ASCII Triggering device is used to trigger messages on the
MessageView terminal using RS-232 ASCII protocol.
ASCII Triggering devices include:
•
SLC 5/03

, SLC 5/04

Port 0
•
SLC BASIC Module
•
PLC-5

Port 0
•
other logic controllers with serial ports
•
Allen-Bradley Industrial Computers
•
any ASCII Transmitting device, including a VT100 Dumb
Terminal.