Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL - Manual (Page 21)

Overview of the DL40 Plus 1–11
Publication 2706-6.1
Adjustable Parameters for Serial Communications
With the DL40 Plus, you can configure RS-232 or RS-485 port
parameters as needed for compatibility with PLCs/SLCs, printers,
slave displays, or control computers.
Serial Communication Parameters Settings
Baud Rate 300, 1200, 2400, 4800, 9600, 19200
Parity Odd, Even, No Parity
Handshake Software, Hardware, None
Data Bits per Character 7 or 8
Null Count
0 to 255
Allows you send a string of nulls to the printer
between characters. Useful with slow printers
that drop characters because they can’t keep
up with normal DL40 Plus output.
Page With
20 –132 characters
Useful for narrow width printer devices.
The DL40 Plus has a number of operating modes. Each mode
provides tools to perform a different set of functions. The following
sections provide a brief overview of the operating modes.
Run Mode
Run mode is the normal operating mode for the DL40 Plus. In Run
mode, messages are triggered for display on the DL40 Plus and slave
message displays (if desired).
The Remote I/O version of the DL40 Plus comes up in Run mode
after a reset. The Parallel port version also comes up in Run mode,
except when the Run Mode/Debug DIP switch is set to Debug on the
DL40 Plus.
The Remote I/O version of the DL40 Plus has 4 Run modes.
•
Message/Variable/Slave Mode triggers a message with 1 to 40
variables, depending on rack size, trigger method, and variable
type. This mode allows you to override the slave address
attribute.
•
Message/Variable Mode is similar to the Message/Variable/Slave
mode but you cannot override the slave address attribute.
•
Message List Mode triggers a message list of up to 20 messages
in round robin order.
•
Bit Trigger Mode triggers a priority message and up to 496
messages in priority and/or round robin order.
Operating Modes