USER MANUAL Manual
Serial Port Communications 6–2
Publication 2706-6.1
You can use the RS-232 port to:
• upload or download message files up to 50 feet (15.24 meters)
using a direct or point-to-point connection.
See the Dataliner DL40 Plus Message Display Offline
Programming Software User Manual (Publication 2706-6.2) for
details.
• communicate to a single slave message display.
Note: To send messages to a slave, you must set the Port Use for
the RS–232 port to DL Slaves.
• trigger Open protocol messages.
• input variable data in the Message Variable/Slave Run Mode and
Message Variable Run Modes using open protocol triggering.
• dynamically add or delete messages to or from the list in Message
list run mode.
• print Historical Events Stack.
• print messages as they are triggered for display (if the Print
Message attribute is set).
• print user application file (parameters and messages).
• test displaying messages.
• set the DL40 Plus using your computer’s real time clock.
• return [CTRL][X] (ASCII Input) data.
Note: ASCII Input Data can only be returned via the RS–232 Port if
the message was triggered via the RS–232 Port.
Using the RS-232 Port