Rockwell Automation 2706 DL40 HARDWARE USER MANUAL - Manual (Page 32)

Chapter 3
The Run Mode – Remote I/O
3 – 6
Return ASCII Input Data to a PLC
Same as Message/Variable/Slave Run Mode; however, see Chapter 10 for
more information.
Return the Message Number of the Message Being Run to a PLC
This is automatically done in the Remote I/O scan. See Chapter 10 for more
information.
Send Real Time Clock Or Date Data to a PLC
Same as Message/Variable/Slave Run Mode; however, see Chapter 10 for
more information.
Put Messages on the Historical Events Stack
Same as Message/Variable/Slave Run Mode but includes entries for adding
or deleting messages.
Note: If the message’s Historical Events Stack attribute is set, message data
will be put on the stack once for each time the message is displayed or
redisplayed.
Send Message to the Slave Address Selected as a Message Attribute
See Chapter 7 for more information.
Note: To send any message to a slave, Port Use of the RS-485 Port must be
set to DL Slaves . Refer to Chapter 6 for more information.
Note: If the message’s Print attribute is set, the message will be printed once
for each time it is displayed or redisplayed.
In the Bit Trigger Run Mode you can:
Trigger Message by Sending a Bit Trigger Table
It takes only a single bit (set) to trigger a message. The position of a bit (in
the Bit Trigger Table) corresponds to a message number. That is, bit 00 of
WORD 1 corresponds to Message Number 1; bit 01 of WORD 1 corresponds
to Message Number 2; etc. The total number of messages that can be
triggered depends on rack size allowed:
Bit Trigger Run Mode