Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Manual de usuario descargar pdf (Pagina 76)

8-16 Message Capability

Publication 1747-6.1

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

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

For ease of viewing, N7:60 through N7:67 are displayed in the ASCII radix. The rest of the file is

displayed in Decimal.

7-word control block: N7:60 through N7:66

N7:60 = 0 message status

N7:61 = 2 DTAM node address

N7:62 = 8 message length

N7:63 = 100 offset (overwrite capability)

N7:64 through N7:66 = unused

8-word local source file: N7:70 through N7:77

N7:70 through N7:77 8-word message text

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 and the suggested low value to be entered:

2. To enter a value:

• Accept the displayed value:

Press

• Use the numeric keys to change the value:

Press

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

module displays the next message in the sequence, with the

suggested high value:

• Accept the displayed value:

Press

• Use the numeric keys to change the value:

Press

Address 0123456789

N7:60 0 2 8 100 0 0 0 0 0 0

N7:70 N O V A L U E E N T E R E D 0 0

ENTER LOW RANGE

ENTER HIGH RANGE

250

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 115 116

Sin comentarios

Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Manual de usuario Pagina 76