Rockwell Automation 2706 DL40 HARDWARE USER MANUAL - Manual (Page 82)

Chapter 8
Serial Communications
8 – 5
If no address is sent when using the RS-485 link, the message trigger will be
ignored.
Note: If the Remote I/O Port is inactive or faulted, the Last State switch
(number 8 on SW2) must be ON to trigger messages from the keyboard or
via the RS-485 Port.
For Message/Variable/Slave and Message/Variable Run Modes only. Note:
Inputting variables via Parallel Port or via Remote I/O Port is described in
Chapters 9 and 10.
Variable data to fill [Ctrl][V] callouts (see page 7 – 4) is input using the
following format:
[CTRL][V]
Variable
Data
Backslash
( \ )
Variable
Position
Backslash
( \ )
DL40
Address
[
↵
]
where:
Data Acceptable Values
Variable Data
1 to 5 ASCII digits with an optional leading plus or minus sign
( + or – ). Data is for the latest message sent to the specified
DL40.
Variable
Position 1 or 2 ASCII digits that specify the position of the variable within
the message (1 through 10)
DL40 Address
1 to 3 digits (0 to 127)
127 = all DL40s on RS-485 link
Note: If no DL40 address is sent, the second backslash ( \ ) is optional. If the
2 backslashes are together:
[CTRL][V]
Variable
Data
Backslash
( \ )
Backslash
( \ )
DL40
Address
[
↵
]
The variable position is assumed to be 1.
If no address is sent when using the RS-485 link, the variable data will be
ignored.
Note: Whenever using this function to fill [CTRL][W] callouts, always set
[CTRL][W] Format to ASCII . See page 6 – 13.
Note: For Message/Variable/Slave and Message/Variable Run Modes only,
inputting variables via Parallel Port or Remote I/O Port is described in
Chapters 9 & 10.
Data to fill [CTRL][W] callouts is input via the keyboard or RS-485 link
using the following format:
Inputting Binary/BCD
Variables via Keyboard Port
or RS-485 Port
Inputting ASCII / BCD
Variables via Keyboard Port
or RS-485 Port