
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
Commenti su questo manuale