Rockwell-automation 1771-IFE , D17716.5.90 USER MNL. ANALOG INPUT Modu Manuel d'utilisateur télécharger pdf (Page 48)

Appendix

B-1

Programming Examples

The following are sample programs for entering data in the configuration

words of the write block transfer instruction when using the PLC-2, PLC-3

or PLC-5 family processors.

To enter data in the configuration words, follow these steps:

Example:

Enter the following rung for a write block transfer:

011

111

BLOCK XFER WRITE

DATA ADDR:

MODULE ADDR:

BLOCK LENGTH:

FILE:

030

110

400 - 437

400 is the address of the write block transfer data file. You want to

examine configuration word 1.

Step Action Description

Press

[SEARCH]8<data address>

Finds the block transfer instruction

Press CANCEL COMMAND

Removes preceding command

Press [DISPLAY]0 or 1 Displays the file in binary or BCD

Move cursor to data to be modified

Enter new data

Press [INSER

T] W

rites data to file element

Use the above procedure to enter the required words of the write block

transfer instruction. Be aware that the block length will depend on the

number of channels selected and whether scaling is or is not performed; for

example, the block may contain only 3 words if no scaling is performed

but may contain 37 words if using 16 inputs with scaling. The PLC-2

family write block transfer data file should look like Figure B.1.

Sample Programs for the

Analog Input Module

PLC2 Family Processors

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 62 63

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Rockwell-automation 1771-IFE , D17716.5.90 USER MNL. ANALOG INPUT Modu Manuel d'utilisateur Page 48