USER MANUAL Manual

Remote I/O Communications 8–28
Publication 2706-6.1
Sending Real Time Clock or Date Data to a PLC
•
Triggering special message 912 (or 12) causes the DL40 Plus to
send clock data to a PLC.
• Triggering special message 913 (or 13) causes the DL40 Plus to
send date data to a PLC.
For details, see pages 8–29 and 8–30. See chapter 3, Special
Messages, for more details on special messages.
Adding or Deleting Messages or Triggering a Priority Message
Using Discrete I/O
The following shows the format of a discrete I/O message trigger in
the Message List Run mode.
WORD 1
17 16 15 14WORD 0
Handshake Bit
Output Image Table
Add/Delete Bit
Priority Message Number
WORD 2 Always Empty
WORD 3
WORD 4
WORD 5
WORD 6
WORD 7
Message Number
Always Empty
Always Empty
Always Empty
Always Empty
Always Empty
Full rack
1/4 rack
1/2 rack
3/4 rack
Messages can be added or deleted while priority messages are being
triggered. If you want to trigger a priority message but do not want
to change the Message List, you must set message number (in word
1) to 0.