Rockwell Automation 2706-PRIO_PDH485_PDHP_PDNET_PCNET_PENET_PENET1 InView Communication Module User Manual - Manual (Page 87)

Publication 2706-UM017C-EN-P - March 2006
Application Guide 4-37
• Variable Array Size. The size of the array (16 to 230 characters
for PLC-5E controller) containing the variable data. The
maximum array size is dependent on the controller and must be
an even integer.
The address tags are either an Integer ( N ) or ASCII ( A ) data file.
Both the Message Trigger and Message Data addresses must fall
entirely within a single 230 byte block, including the Message Data
array size. You can choose to use either an Integer or Ascii 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 N7:110, with a Message Data array size of 16,
is not valid because the array falls outside of the 115 word (230 byte)
block.
ControlLogix Controller
EtherNet/IP Communication Setup
IMPORTANT
Variable Trigger and Variable Data addresses work
the same as Variable Array Size.