Rockwell Automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTAM) - Manual (Page 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 >(17(5@
• Use the numeric keys to change the value:
Press >(17(5@
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 >(17(5@
• Use the numeric keys to change the value:
Press
>(17(5@
Address 0 1 2 3 4 5 6 7 8 9
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
1
ENTER HIGH RANGE
250