Rockwell-automation 1771-DB BASIC MODULE Manual de usuario descargar pdf (Pagina 13)

Preface B

Using This Manual

Using-3

Throughout this manual, we abbreviate some terms. The terms and

abbreviations listed in this table are specific to this product.

For a complete listing of Allen-Bradley terminology, refer to the

Allen-Bradley Industrial Automation Glossary, (AG-7.1).

Term/Abbreviation Definition

ASCII port

port used to connect to foreign devices. You can configure either

PRT1 or PRT2 to be an ASCII port

BASIC the BASIC-52 programming language

BASIC module BASIC Module (catalog number 1771-DB, Series B)

BTR buffer Block Transfer Read buffer

BTW buffer Block Transfer Write buffer

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

CIF Common Interface File

DF1 protocol use this protocol to communicate with a node. You can configure

PRT2 for DF1 protocol

dimensioned

variable

a variable that includes an expression

DH-485 network communication protocol

EPROM Erasable Programmable Read Only Memory

EEPROM Electrically Erasable Programmable Read Only Memory

input buffer BASIC module input buffer (includes BTR buffer). Ports PRT1 and

PRT2 also have an input (receive) buffer.

memory module BASIC module EPROM (read only), UVPROM (read only), EEPROM,

MTOP system control value that holds the last valid memory address

network port port used to connect to a DH-485 network. You can configure the

DH485 port to be a network port

PBASE BASIC Development Software (catalog number 1747-PBASE)

PLC Programmable Logic Controller

program port port used to program the BASIC module. You can configure either

port PRT1 or port DH485 of the BASIC module as the program port.

output buffer BASIC module output buffer (includes BTW buffer). Ports PRT1 and

PRT2 also have an output (transmit) buffer.

RS-232/423 serial communication interface

RS-422 differential communication interface

RS-485 network communication interface

RAM Random Access Memory

ROM Read Only Memory, refers to the optional memory module memory

space (EEPROM or UVPROM)

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 (A UVPROM

is a type of EPROM.)

Terms and Abbreviations

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