F - serial and parallel port examples, Objectives, Serial and parallel port examples – Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL User Manual

Page 186: Appendix

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Appendix

F

Serial and Parallel Port Examples

This appendix provides the following examples.

Section

Page

RS-232 Serial Triggering Example

F–1

RS-485 Serial Triggering Example

F–2

Parallel Port Message Variables Triggering Example

F–3

Parallel Port Message List Mode Triggering Example

F–5

RS-232 Serial Triggering Example

This example shows serial triggering of the DL40 Plus through the
RS-232 port using Channel 0 of an SLC. A PLC with Channel 0
could also be used.

<END>

ASCII Write
Channel

0

Source

ST9:0

Control

R6:0

String Length

0<

Characters Sent

0<

Error

0<

<ER>

Timer On Delay
Timer

T4:0

Time Base

1.0

Preset

1<

Accum

0<

This program continuously sends the contents of the string file ST9:0 out
the Channel 0 port of the SLC to the RS-232 port of the DL40 Plus.

TON

0000

AWT

0001

0002

T4:0

DN

T4:0

<EN>

<DN>

<EN>

<DN>

DN

Objectives

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