Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL - Manual (Page 34)

Using the Onboard Editor to Create Messages 2–8
Publication 2706-6.1
Insert Request for ASCII Input Data [CTRL][X]
A data request requires you to enter ASCII Data (8-bit ASCII
character) through the Keyboard port into the displayed message.
•
When returning ASCII Input Data via RS-485/RS-232 Port, the
message requesting the data must be triggered via the RS-485
port. This is true for both Parallel Port and Remote I/O units.
Data is automatically entered when you press
[
↵
] .
•
With Remote I/O units, the ASCII input data is sent via Remote
I/O port to the PLC as part of the Return Message Number
displayed. Data can be returned to your PLC in:
– Message/Variable/Slave Run mode
– Message/Variable Run mode
– Message List Run mode
User requested data is sent to the PLC as part of the I/O scan. Up
to 20 ASCII characters can be sent with Block Transfer. Up to 12
ASCII characters can be sent with Discrete Transfer (depending
on rack size).
The Enter bit is set only after all ASCII data requested has been
inserted in the message. Data is not considered valid until the
Enter bit is set.
Important: If more ASCII data is requested than can be
returned to the PLC, the excess data is lost.
To enter a data request, place the cursor just after the point where
you want to insert the request. Use
[CTRL][X] to specify the insertion
position. The software will insert the symbol for a single byte data
request (
↑
).
Insert Time Into a Message [CTRL][T]
To enter the time in a message, place the cursor just after the point
where you want the time inserted. Use
[CTRL][T] to specify the
insertion position. The software will insert the symbol for a time
variable (HH:MM:SS).
The time variable occupies 8 of the available 20 characters on a
display line.
You can use the time variable in any Run mode.