Rockwell-automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL Manual de usuario descargar pdf (Pagina 63)

Chapter 7

Programming

7–25

The figures on the following pages show the input and output tables for the

Keypad Module.

The following symbols and abbreviations appear in the input and output

tables. Refer to this list for identifying specific bits in the tables:

“-” Represents a “0”. No function is assigned for this bit location.

HHandshake bit. Refer to page 7–28 for more information.

EN ENter bit. This bit toggles when the ENTER key of the keypad

module is depressed.

F1-F6

Function key bits. These bits are input signals from the function

keys. When one of the function keys is depressed the

corresponding bit will toggle.

L1-L6

LEDs located on each function key. These bits are output signals

that feedback to acknowledge a function key was depressed.

They can be used like pilot lights. When bit=1 the LED is ON,

when bit=0 the LED is off.

DMDisplay Message. This bit allows a 16–character stored message

to be displayed or ASCII data (No PLC numeric data), when

DM=1. Refer to Chapters 6 & 7 for more information.

SMD

tored Message Display number. This is the output word

location for the message number which is being displayed

on the Keypad. When SMD=0, then ASCII data will be

displayed.

ATTENTION: Any SMD value greater than 120 will cause a

lock–up condition. To protect against this condition, a boundary

check should be used in the PLC program to help insure a valid

MSG # is sent.

Symbols and Abbreviations for

I/O Image Tables

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 92 93

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Rockwell-automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL Manual de usuario Pagina 63