User Manual Manual

Publication 2706-UM017C-EN-P - March 2006
Application Guide 4-23
• Variable Array Size. The size of the array (16 to 80 characters for
DHP) containing the variable data. The maximum array size is
dependent on the controller and must be an even integer.
The address tags are an Integer (N) data file. Both the Message Trigger
and Message Data addresses must fall entirely within a single 80 byte
block, including the Message Data array size. You can choose to use
any Integer data file, but you cannot use more than one data file. For
example, a Message Trigger address of N7:0 and a Message Data
address of N9:0 is not valid. At the same time, a Message Trigger
address of N7:0 and a Message Data address of N7:35, with a Message
Data array size of 16, is not valid because the array falls outside of the
40 word (80 byte) block.
DH485 Communication and
Tag Setup Screens
The InView message display can communicate with the following
controllers on a DH485 network.
• SLC controller
• MicroLogix controller
• ControlLogix controller
• FlexLogix controller
• CompactLogix controller
IMPORTANT
Variable Trigger and Variable Data addresses work
the same as Variable Array Size.