Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL User Manual

Page 82

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Parallel Port Communications

7–2

Publication 2706-6.1

Feature

Message/Variable/Slave Run

Mode

Message List Run Mode

Trigger messages

Trigger a message with 1 to 40
variables, depending on trigger
method and and variable type

Triggers a message list of up to
20 messages in Round Robin
Order

Send messages to slave
display

Slave address for each
message can be specified with
message trigger. (Overrides
address specified as Message
Attribute)

Slave address specified as a
Message Attribute

Send variables to place in
message

D Up to 10 (16 bit) binary or (4

digit) BCD

D Up to 20 (8 bit) ASCII

D Up to 40 (4 bit) BCD

No

Variable types

Binary – Signed and Unsigned
BCD
ASCII

Not Applicable

Message acknowledgement

Yes

Input and display of ASCII
input data (via keyboard port)

Up to 20 ASCII characters

Return ASCII input data via
RS-485/RS–232 port
(If triggered by RS-485/RS-232
Open protocol)

Up to 20 characters

Put message on Historical
Events Stack

Yes

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