Rockwell Automation 2706-LSW DL40 PLUS OFFLINE PROG.SFTWR.USER MANUAL - Manual (Page 19)

1–12 Overview of the DL40 Plus
Publication 2706-6.2
Serial Triggering (RS–232/RS–485)
Both the Remote I/O and the Parallel port versions of the DL40 Plus
support serial triggering. The RS-232, RS-485, or Keyboard port
can control message triggering and variable data communications.
Serial triggering uses Open protocol, which communicates using
ASCII characters in a serial data stream.
Open protocol is available in the following run modes:
•
Message/variable/slave mode
•
Message/variable
•
Message list
Offline Modes
The DL40 Plus offers the following offline operating modes:
•
Help mode
•
Historical Recall mode
•
Remote Program mode (for Offline Programming Software)
•
RS-232/RS-485 Port Configuration mode
•
Clock mode
•
Print mode
•
Debug mode (on Parallel port versions only)
Special messages let you monitor and control certain functions of the
DL40 Plus without leaving Run Mode. Special messages normally
occupy message numbers 901 through 916. You can move special
messages to message numbers 1 to 16, or disable them with the
Offline Programming Software or Onboard Editor.
Message Number Content Message Number Content
901 (or 01) Terminate Message – Clear Display 909 (or 09) Clear Historical Events Stack
902 (or 02) Clear Queue 910 (or 10) Set Interactive Clock
903 (or 03)
Terminate Message – Clear Display and
Queue
911 (or 11) Set Clock with Variable Data
904 (or 04) Reset Unit 912 (or 12) Send Time to PLC
➀
905 (or 05) Test Display 913 (or 13) Send Date to PLC
➀
906 (or 06)
Print Historical Events Stack –
Chronological Order
914 (or 14) View Display Parameters
907 (or 07)
Print Historical Events Stack – Frequency
of Occurrence
915 (or 15)
Stop Special Messages/Resume Run
Mode
908 (or 08) View Historical Events Stack 916 (or 16) Set Display Intensity
➀
Remote I/O versions only
Special Messages