Rockwell Automation 1747-PBASE BASIC Development Software Programming Manual - Manual (Page 12)

Publication 1746-PM001A-US-P
P-4
Terms and Abbreviations The following terms and abbreviations are specific to this product. For a complete
listing of Allen-Bradley terminology, refer to the Allen-Bradley Industrial
Automation Glossary, publication number ICCG-7.1.
•
A-Stack error — occurs when too many expressions are PUSHed onto the
argument stack or when you attempt to POP data that does not exist
•
BASIC development language

enhanced BASIC language that comes with
the BASIC Development Software (catalog number 1747-PBASE) and
provides programming support for the BASIC and BASIC-T modules.
•
DH485

network communication protocol
•
dialog box — a box that appears on the screen of the BASIC Development
Software displaying available options for a selected menu item
•
EMS — refers to the expanded memory that may be installed on your personal
computer. The BASIC Development Software uses expanded memory not
extended memory.
•
EPROM

Erasable Programmable Read Only Memory
•
file — a BASIC program file
•
filename extension — the characters to the right of the filename and period.
•
Hypertext help — a context-sensitive help system that allows access to help
from practically any point in the BASIC Development Software.
•
keystroke macros — a recorded series of keystrokes invoked by one keystroke
to reduce the number of keystrokes needed to perform a function
•
memory module — BASIC or BASIC-T modules EEPROM or UVPROM
•
MTOP

system control value that holds the last valid memory address
•
program port — the port used to program the module. Either PRT1 or port
DH485 can be used as the program port.
•
programming macros — commands available through the BASIC
Development Software designed to streamline programming
•
QuickStroke — refers to a key or pair of keys that are pressed rapidly to
perform a function or access a menu. These keys are shown within braces
[ ]
,
for example, [Alt-F10] .
•
RAM — Random Access Memory
•
ROM — Read Only Memory, refers to the optional memory module memory
space (EEPROM or UVPROM)
•
RS-232/423

serial communication interface
•
RS-422

differential communication interface
•
RS-485

network communication interface
•
SLC 500

SLC 500 fixed and modular controller