Rockwell-automation 1772-LV Mini-PLC - 2/15 Programmable Controller (S Manual de usuario descargar pdf (Pagina 150)

Special Programming Techniques

Chapter 11

113

Online

Programming Procedure

The changes to your program that you can make in the on-line programming

mode include the following:

Insert an instruction

Remove an instruction

Insert a rung

Remove a rung

Change an instruction or instruction address

The on-line programming mode is accessible from the industrial terminal by

pressing the key sequence [SEARCH][5][2]. The processor keyswitch must be

in the RUN/PROG position. The heading, “ON-LINE PROGRAMMING” will

appear in the top right-hand corner of the screen highlighted in reverse video.

The procedure for programming on-line in run/program mode is similar to the

procedure for editing in program mode with the exception that the following

three keys have a special purpose in on-line programming:

[RECORD]

[CANCEL COMMAND]

[DATA INIT]

Use the [RECORD] key to enter a change to your program. Once pressed, the

changed program is active.

Use the [CANCEL COMMAND] key to abort any on-line programming

operation prior to pressing the [RECORD] key. It restores the ladder diagram

display and program logic to its original state prior to the on-line programming

operation. You can also use it to terminate the on-line programming mode.

The [DATA INIT] key will be discussed next.

You must enter two types of information when programming the following

instructions:

Get Counters

Equal to Files

Less than Sequencers

Timers

The two types of information needed are the instruction and operating

parameters.

NOTE: Operating parameters are used only for file and sequencer instructions.

Data Initialization Key

1 2 ... 145 146 147 148 149 150 151 152 153 154 155 ... 214 215

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Rockwell-automation 1772-LV Mini-PLC - 2/15 Programmable Controller (S Manual de usuario Pagina 150