Rs-232 serial port setup, Rs–232 serial port setup – Rockwell Automation 5370-CVIM2 Module User Manual

Page 496

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Chapter 10

Environment Menu Selections

10–10

When you pick

Comm Ports

in the

Environment

menu, the

Comm Ports

selection menu appears, as shown in Figure 10.12. When you then pick one
of the four RS–232 port items, the corresponding I/O port configuration
panel appears as shown in the figure.

Figure 10.12 Example: Selecting an RS–232 Port Configuration Panel

ЗЗЗЗ

ЗЗЗЗ

ЗЗЗЗ

ЗЗЗЗ

ЗЗ

ЗЗ

The CVIM2 system has four RS–232 serial ports, which are listed as follows
in the setup panel:

Module I/O Port A

,

Module I/O Port B

,

System I/O

Port A

, and

System I/O Port B

. All of these ports are accessed through the

physical

Module I/O

and

System I/O

ports on the CVIM2 front panel.

The example in Figure 10.12 illustrates selecting one of the port setup panels,
in this case, the

Module I/O Port A

setup panel. To configure this serial port,

first select its intended use (

ASCII

,

Mouse

,

Keyboard

, or

DF1

) by picking

(highlighting) one. Here is a brief description of the applicability of each of
the four selections:

ASCII –– Select

ASCII

when using the RS–232 port to transfer data to

and from devices using the ASCII protocol.

Mouse –– Select

Mouse

when the port is dedicated to a serial mouse.

Keyboard –– Select

Keyboard

when connecting an external RS–232

keyboard to the port. This can be used to input data when the graphical
keyboard or calculator is on the screen.

DF1 –– Select

DF1

when using the RS–232 port to transfer data to and

from devices using Allen–Bradley’s DF1 communication protocol.

Then, choose the appropriate values from the selections alongside each of the
four parameters (baud rate, number of data bits, parity, and number of stop
bits), according to the requirements of the equipment to which the port is
connected.

RS–232 Serial Port Setup

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