Rockwell Automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL User Manual

Page 47

Advertising
background image

Chapter 7
Programming

7–9

The keypad destination function can be used to load data values into multiple
timer/counter presets or other PLC memory locations. The example program
listed below can be used to load preset values into 17 consecutive timer
presets, beginning with T4:0.PRE and ending with T4:16.PRE. Rungs 3
through 16 have been omitted to simplify the example. The keypad is
configured for 3/4 Rack, instead of 1/2 Rack as in the previous examples,
otherwise all DIP switch settings remain the same. Refer to page 7–30 for an
example of a 3/4 rack I/O Image table.

Rungs 1–17 provides a PLC 5/15 example program using the Destination
Function.

Rung 17

Rung 2

Rung 1

16

00

16

01

00

16

I:023
] [

I:020
] [

I:020
] [

I:023
] [

I:020
] [

I:024
] [

MOVE
Source

I:021

15

Dest

T4:1.PRE

0

MOVE
Source

I:021

15

Dest

T4:0.PRE

0

MOVE
Source

I:021

15

Dest

T4:16.PRE

0

MOV

MOV

MOV

Rung 1:
Destination bit I:023/00 is “ON” when the keypad operator enters destination
number “1”. All other destination bits are “OFF”. The ENTER bit I:020/16
prevents data from being moved until the keypad operator enters a new
preset for T4:0. The MOVE instruction takes the integer data in I:021 and
transfers it to T4:0.PRE.

Rung 2:
Destination bit I:023/01 is “ON” when the keypad operator enters destination
number “2”. All other destination bits are “OFF”. The ENTER bit I:020/16
prevents data from being moved until the keypad operator enters a new
preset for T4:1. The MOVE instruction takes the integer data in I:021 and
transfers it to T4:1.PRE.

Using the Destination Function
to Load Multiple Timer Presets

Advertising