Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL - Manual (Page 94)

Remote I/O Communications 8–2
Publication 2706-6.1
Run mode is the normal operating mode for the DL40 Plus. In run
mode, messages are triggered for display on the DL40 Plus and (if
desired) on slave message displays.
The Remote I/O version of the DL40 Plus always comes up in run
mode after a reset.
The Remote I/O DL40 Plus has four run modes:
•
Message/Variable/Slave Mode triggers a message with 1 to 40
variables (depending on rack size, trigger method, and variable
type). In this mode, you can override the slave address message
attribute.
•
Message/Variable Mode is similar to the Message/Variable/Slave
mode except you cannot override the slave address message
attribute.
•
Message List Mode triggers a message list with a maximum of
20 messages in round robin order.
•
Bit Trigger Mode triggers a priority message and a maximum of
496 messages in priority and/or round robin order.
Select a run mode using the Onboard Editor or the Offline
Programming Software. The table on the following page provides an
overview of the differences between run mode types.
Important: A message completes running when one of the
following occurs:
•
Wait Time expires
•
message is acknowledged
•
message completes printing
•
message is sent to slave(s)
•
handshaking is complete
•
all ASCII Input Data is entered
Note: When using a Remote I/O DL40 Plus for serial ASCII (open
protocol) communications, the “NO PLC COMMUNICATION”
error message may be disabled by setting DIP switch S2, position 10,
to ON.
Overview of Remote I/O
Communications