Rs-485 port – Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL User Manual
Page 61
Offline Operating Modes
4–8
Publication 2706-6.1
RS-485 Port
The following settings are available for the RS-485 Port. The default
value appears in bold. Use the keyboard spacebar or
[SELECT]
to
cycle through baud rate choices. Press
[ESC]
or
[MSG ACK]
to quit
without saving changes.
RS-485 Port Parameters
Available choices
Port Use
DL40 Plus Programmer, DL Slaves,
Devices Using Open Protocol
Baud Rate
300, 1200, 2400, 4800, 9600, 19200
Parity
None, Odd, Even
➁
Data Bits
7 or 8
➀
➀ This setting should always be 8 if Port Use is set to Programmer.
➁ This setting should always be None if Port Use is set to Programmer.
Important: Do not set RS-485 Port Usage to DL Slaves or Devices
Using Open Protocol if downloading message files to
the DL40 Plus via the RS-485 Port.
Triggering Port Settings
The parameters presented here will differ between Remote I/O and
Parallel Port versions of the DL40 Plus Message Display. The
following settings are available only on Remote I/O units. The
default value appears in bold.
Remote I/O Parameters
Available choices
Message Format
Binary, BCD
Variable Format
Binary, BCD
Control-W Format
BCD, ASCII
Bit Trigger Priority Section
Size
0 to 31 words
Always Send Clock Data
Yes or No
➀
➀ If selection is Yes, only clock data will be returned to a PLC no matter what
attributes are set or what data is requested.
The following settings are available only on Parallel Port units. The
default value appears in bold.
Parallel Port Parameters
Available choices
Message Format
Binary, BCD
Variable Format
Binary, BCD
Control-W Format
BCD, ASCII
High True Logic
Yes or No
Using AC/DC Converter
Yes or No
Data Hold Time
40 to 255 msec
➀
or 10 to 255 msec
➁
➀ If using AC/DC Converter (2706–NG2)
➁ If not using AC/DC Converter