Rockwell-automation 1771-DB Basic Module User Manual - Series A Manual do Utilizador descarregar pdf (Página 12)

Introducing the BASIC Module

Chapter 2

2–2

Figure

2.1

BASIC Module Front Edge

Your module is a one-slot module with the following functions and

features:

13 K bytes of battery backed RAM for user programs.

32 K bytes of EPROM storage for user software routines.

One RS-423A/232C compatible serial communications

port(PROGRAM port) which works with ASCII terminals providing

operator program interaction, command level input printer output, etc.

The program port baud rate defaults to 1200 baud. Initially you must set

your terminal for 1200 baud. Use CALL 78 to change the program port

baud rate. The program port is fixed at no parity, 1 start bit, 1 stop bit

and 8 data bits.

It also supports XON/XOFF for interruption of LISTing or to suspend

data output from the program port.

2.2

General Features (continued)

2.3

Hardware Features

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Rockwell-automation 1771-DB Basic Module User Manual - Series A Manual do Utilizador Página 12