Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User Manual de usuario descargar pdf (Pagina 120)

Publication 1763-UM001D-EN-P - March 2011

118 Using the LCD

The example table below shows how the LCD uses the configuration

information with integer file number 7 (LCD:0.TIF=7).

The element number displayed on the LCD corresponds to the data address as

illustrated in the table. The protection bit defines whether the data is editable

or read-only. When the protection bit is set (1), the corresponding data address

is considered read-only by the LCD. The “Protected!” message is displayed

whenever a read-only element is active on the LCD. When the protection bit is

clear (0) or the protection bit does not exist, no additional message is displayed

and the data within the corresponding address is editable from the LCD

keypad.

Element

Number

Data Address Protection Bit Element

Number

Data Address Protection Bit Element

Number

Data Address Protection Bit

0 N7:0 N7:48/0 16 N7:16 N7:49/0 32 N7:32 N7:50/0

1 N7:1 N7:48/1 17 N7:17 N7:49/1 33 N7:33 N7:50/1

2 N7:2 N7:48/2 18 N7:18 N7:49/2 34 N7:34 N7:50/2

3 N7:3 N7:48/3 19 N7:19 N7:49/3 35 N7:35 N7:50/3

4 N7:4 N7:48/4 20 N7:20 N7:49/4 36 N7:36 N7:50/4

5 N7:5 N7:48/5 21 N7:21 N7:49/5 37 N7:37 N7:50/5

6 N7:6 N7:48/6 22 N7:22 N7:49/6 38 N7:38 N7:50/6

7 N7:7 N7:48/7 23 N7:23 N7:49/7 39 N7:39 N7:50/7

8 N7:8 N7:48/8 24 N7:24 N7:49/8 40 N7:40 N7:50/8

9 N7:9 N7:48/9 25 N7:25 N7:49/9 41 N7:41 N7:50/9

10 N7:10 N7:48/10 26 N7:26 N7:49/10 42 N7:42 N7:50/10

11 N7:11 N7:48/11 27 N7:27 N7:49/11 43 N7:43 N7:50/11

12 N7:12 N7:48/12 28 N7:28 N7:49/12 44 N7:44 N7:50/12

13 N7:13 N7:48/13 29 N7:29 N7:49/13 45 N7:45 N7:50/13

14 N7:14 N7:48/14 30 N7:30 N7:49/14 46 N7:46 N7:50/14

15 N7:15 N7:48/15 31 N7:31 N7:49/15 47 N7:47 N7:50/15

IMPORTANT

Although the LCD does not allow protected data to

be changed from its keypad, the control program or

other communication devices do have access to this

data. Protection bits do not provide any overwrite

protection to data within the target integer file. It is

entirely the user’s responsibility to ensure that data is

not inadvertently overwritten.

TIP

• Remaining addresses within the target file can be

used without restrictions (addresses N7:51 and

above, in this example).

• The LCD always starts at word 0 of a data file. It

cannot start at any other address within the file.

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 255 256

Comentarios a estos manuales

Sin comentarios

Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User Manual de usuario Pagina 120

Comentarios a estos manuales

Relacionado con productos y manuales para Equipo Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User