Rs-485 port – Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL User Manual

Page 61

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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

Data Bits

7 or 8

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 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

or 10 to 255 msec

➀ If using AC/DC Converter (2706–NG2)

➁ If not using AC/DC Converter

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