Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Manual de usuario descargar pdf (Pagina 80)

8-20 Message Capability

Publication 1747-6.1

The following example is for the 1-word message in rung 2:

Below is the data monitor display for the message control block and

the local source file, followed by an explanation of the data file.

7-word control block: N7:10 through N7:16

N7:10 = 0 message status

N7:11 = 2 DTAM node address

N7:12 = 1 message length

N7:13 = 100 offset (overwrite capability)

N7:14 through N7:16 = unused

1-word local source file: N7:20

The ladder logic and data monitor examples on the previous pages

must be programmed in SLC 5/02 processor memory for the

following module message display:

1. When the input in rung 0 becomes true, the module displays this

message:

2. To enter a value use the numeric keys. Then:

Press

3. The value writes to the data entry destination address, and the

module display returns to the previous screen.

If no value is entered, the value in the data entry destination

address remains unchanged, and the display returns to the previ-

ous screen after five seconds.

Pressing the

key while the message is displayed does not

alter the value stored at the data entry address, and the display

returns to the previous screen.

Read/Write:

Target Device:

Control Block:

Local Source File Address:

Target Node:

Target Offset:

Message Length in elements:

WRITE

485 CIF

N7:10

N7:20

100

ignore if timed out:

to be retried:

awaiting execution:

error:

message done:

message transmitting:

Address 012345 6789

N7:10 02110000 0000

N7:20 000000 0000

ENTER NEW VALUE?

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 115 116

Comentarios a estos manuales

Sin comentarios

Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Manual de usuario Pagina 80

Comentarios a estos manuales

Relacionado con productos y manuales para Equipo Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA