Rockwell-automation 1771-DB Basic Module User Manual - Series A Manual de usuario descargar pdf (Pagina 47)

Operating Functions

Chapter 5

5–10

Action taken: This command interrupts the scrolling of a BASIC

program during the execution of a LIST command. It also stops

output from the receiving port if you are running a program. In this

case XOFF (Control S) operates as follows:

1. XOFF only operates on PRINT statements.

2. When

received during a PRINT

data

output

and

program execution

are suspended immediately.

3. When

received at any

other time,

program execution

continues until a

encountered.

this time program execution

suspended.

4. XON (Control Q) is required to resume program operation.

Action taken: This command restarts a LIST command or PRINT output

that is interrupted by a Control S.

Your BASIC Module can execute and SAVE up to 255 programs in

an EPROM. The module generates all of the timing signals

needed to program most EPROM devices. The programs are stored

in sequence in the EPROM for retrieval and execution. This sequential

storing of programs is called the EPROM FILE. The following

commands allow you to generate and manipulate the EPROM

FILE.

Action taken: These two commands tell the the BASIC Module

interpreter whether to select the current program out of RAM or EPROM.

The current program is displayed during a LIST command and

executed when RUN is typed.

5.3.8

Command: Control S

5.3.9

Command: Control Q

5.3.10

Overview of EPROM File

Commands

5.3.11

Commands: RAM and ROM

[integer]

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 166 167

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Rockwell-automation 1771-DB Basic Module User Manual - Series A Manual de usuario Pagina 47

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