Calculated Industries 6250 Guide de l'utilisateur télécharger pdf (Page 71)

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Basic 6250 Features

One-to-One

Program Select

(INFNCi-aP)

Inputs can be defined as One-to-One Program Select inputs (INFNCi-aP). This allows

programs defined by the DEF command to be executed by activating an input. Different from

BCD Program Select inputs, One-to-One Program Select inputs correspond directly to a

specific program number. The program number is determined by the order in which the

program was downloaded to the 6250. The program number can be obtained through the

TDIR command.

To execute programs using the program select lines, enable the INSELP command for one-to-

one program selection. Once enabled, the 6250 will continuously scan the input lines and

execute the program selected by the active program select line. To disable scanning of the

program select lines, enter !INSELPØ, or place INSELPØ in a program that can be selected.

Command Description

> RESET Return 6250 to power-up conditions

> ERASE Erase all programs

> DEF proga Begin definition of program proga

- TPE Transfer position of encoder

- END End program

> DEF progb Begin definition of program progb

- TREV Transfer software revision

- END End program

> DEF progc Begin definition of program progc

- TSTAT Transfer statistics

- END End program

> INFNC1-1P Input 1 will select proga

> INFNC2-2P Input 2 will select progb

> INFNC3-3P Input 3 will select progc

> INFEN1 Enable input functions

> INSELP2,5Ø Enable scanning of inputs

You can now execute programs by making a contact closure from an input to ground to activate the

input:

❏ Activate input 1 to execute program #1 (proga)

❏ Activate input 2 to execute program #2 (progb)

❏ Activate input 3 to execute program #3 (progc)

Program

Security

(INFNCi-Q)

Issuing the INFNCi-Q command enables the Program Security feature and assigns the

Program Access function to the specified programmable input.

The program security feature denies you access to the DEF, DEL, ERASE, MEMORY, and

INFNC commands until you activate the program access input. Being denied access to these

commands effectively restricts altering the user memory allocation. If you try to use these

commands when program security is active (program access input is not activated), you will

receive the error message *ACCESS DENIED. The

INFNCi-Q

command is not saved in

battery-backed RAM, so you may want to put it in the start-up program (

STARTP

For example, once you issue the INFNC22-Q command, input #22 is assigned the program

access function and access to the DEF, DEL, ERASE, MEMORY, and INFNC commands will be

denied until you active input #22.

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Calculated Industries 6250 Guide de l'utilisateur Page 71

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