
Publication 1746-RM001A-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.
• Module SLC 500 BASIC and BASIC-T Modules (catalog numbers
1746-BAS and 1746-BAS-T)
• BASIC development software BASIC Development Software (catalog
number 1747-PBASE)
• BASIC —the BASIC-52 programming language
• console device — the device connected to the BASIC module program port.
This device is used as an interface between the user and the BASIC program.
• DH485 network communication protocol
• EPROM Erasable Programmable Read Only Memory
• EEPROM — Electrically Erasable Programmable Read Only Memory
• 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.
• 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
• SCADA — Supervisory Control and Data Acquisition
• scalar variable — a variable with a single value
• SLC 500 SLC 500 fixed and modular controller
• UVPROM — Ultra Violet Erasable Programmable Read Only Memory
Conventions Used in this
Manual
The following conventions are used throughout this manual:
• Bulleted lists such as this one provide information, not procedural steps.
• Numbered lists provide sequential steps or hierarchical information.
• Italic type is used for emphasis.
• Te xt i n this font indicates words or phrases you should type.
• Key names match the names shown and appear in bold, capital letters within
brackets (for example,
[ENTER]).
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