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Basic commands -4, Basic commands – Rockwell Automation 1746-BAS-T SLC 500 Basic Basic-T Modules User Manual

Page 52

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Publication 1746-UM004B-EN-P - December 2005

4-4 Programming Overview

BASIC Commands

BASIC commands are programming instructions that are executed
during the Command mode except for CONTROL-C. CONTROL-C
takes you from Run mode to Command mode. Typically these
commands are used to perform some type of program maintenance.
The following table lists the BASIC programming commands.

Command

Function

Examples

CONT

CONTinue program execution after a STOP
statement or CONTROL-C command.

CONT

CONTROL-C

Stop current program execution in Run mode and
return module to Command mode.

[CTRL-C]

CONTROL S

Interrupt a LIST command.

[CTRL-S]

CONTROL Q

Restart a LIST command after a CONTROL S
command.

[CTRL-Q]

DISABLING
CONTROL-C

Disable the CONTROL-C break function. CALL 18
disables the CONTROL-C break function. CALL 19
re-enables the CONTROL-C break function.

CALL 18 (disable)
CALL 19 (re-enable)

ERASE

Erase the program stored in ROM.

ERASE

LIST

LIST current program or indicated lines of program
to the console device.

LIST, LIST 10-50

LIST#

LIST current program or indicated lines of program
to the device connected to port PRT1.

LIST#, LIST#50

LIST@

LIST current program or indicated lines of program
to the device connected to port PRT2.

LIST@, LIST@50

MODE

Set up port parameters.

MODE(DH485,19200)

NEW

Erase the program stored in RAM.

NEW

NULL

Count the number of null characters the module
outputs after a carriage return.

NULL, NULL4

PROG

Program the EEPROM module with the current
program.

PROG

PROG1

Program the EEPROM module with port information
for all three ports and store MTOP information.

PROG1

PROG2

Execute the first program stored in EEPROM when
the module is turned on.

PROG2

RAM

Select the current program from RAM.

RAM

ROM

Select the current program from EEPROM.

ROM, ROM3

RUN

Execute the currently selected program.

RUN

XFER

Transfer a program from EEPROM to RAM, then
select RAM mode.

XFER

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