Rockwell Automation 2706 DL40 HARDWARE USER MANUAL User Manual
Page 79

Chapter 8
Serial Communications
8 – 2
•
Triggering messages in any run mode.
•
Inputting variable data in the Message Variable/Slave Run Mode and
Message/Variable Run Mode.
•
Dynamically adding or deleting messages to or from the list in Message
List Run Mode.
•
Test displaying messages.
•
Setting DL40 using computer’s real time clock.
•
Returning
[CTRL][X] (
ASCII Input) data.
Note: ASCII Input Data can only be returned via the RS-485 Port if the
message was triggered via the RS-485 Port.
!
ATTENTION: Do not attempt to trigger messages and return
ASCII Input Data simultaneously. Doing so will cause both
transmissions to become corrupted.
Note: If more than one DL40 is on the RS-485 link and
— if a transmission is in progress to a DL40 and
— if power to a second DL40 is cycled (
OFF–ON
), the transmission to
the DL40 will time out because the DL40 which is powering up
temporarily interrupts the link (this does not occur with displays
having a firmware revision number of 2.02 or greater).
Uses of the Keyboard Port
Use the Keyboard Port to control a variety of DL40 functions.
Keystroke
Function
[CTRL][T]
Triggering messages
[CTRL][V]
Inputting variables to fill [CTRL][V] callouts
[CTRL][A]
Inputting variables to fill [CTRL][W] callouts
[CTRL][E]
Onboard editing
[CTRL][P]
Printer user application file
[CTRL][S]
Historical Events Stack (viewing or printing)
[CTRL][B]
Backup (tape or memory module)
[CTRL][C]
Clock setting
[CTRL][D]
Debug Mode
You can also use the Keyboard Port for:
•
Inputting ASCII Input
[CTRL][X]
Data.
Note: ASCII Input Data can only be returned via the RS-485 Port if the
message was triggered via the RS-485 Port or via the Remote I/O Port if
the message was triggered via the Remote I/O Port.