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5 - editing, General, Editing the message instruction – Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual User Manual

Page 75: Editing

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Chapter

5

5Ć1

Editing

This chapter explains how to create and edit message procedures and
commands for the 1775–KA module. The message procedure commands
themselves are described in Chapter 6.

The general steps for editing a 1775–KA message procedure are:

1. Create and edit the PLC–3 ladder diagram program containing

message instructions to control execution of the 1775–KA message
procedure.

2. Allocate memory to the necessary PLC–3 data files.

3. Create and edit the 1775–KA message procedure.

You can perform the first two steps through an Industrial Terminal (cat.
no. 1770–T4) connected to the I/O Scanner–Programmer Interface
Module (cat. no. 1775–S4A). The third step can be performed either
through an Industrial Terminal or through a data terminal connected to the
I/O Scanner–Message Handling Module (cat. no. 1775–S4B). These steps
are described below.

Table 5.A gives an example of how to edit the message instruction in the
PLC–3 ladder diagram program. For more details on this type of editing,
refer to the PLC–3 Programming Manual (publication 1775–801).

General

Editing the Message Instruction