Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL - Manual (Page 365)

Appendix
A
A-1
PLC Programming Considerations
PanelView objects and functions can be assigned block transfer addresses
as well as discrete I/O addresses. Block transfer files should only be used
when there are not enough discrete I/O image table addresses available.
When block transfer addresses are assigned to PanelView terminal objects
or functions, the following must be specified:
PLC read or PLC write (input or output)
block transfer file (1–5)
word number (0–31)
bit number (0–15)
You can make up to five block transfer assignments for a terminal. Each
assignment supports a PLC read and PLC write file, for a total of up to 5
read files and 5 write files. Each file’s size can be from 1–32 words. Block
transferring to a PanelView terminal is just like block transferring to
intelligent I/O modules in I/O racks.
For each block transfer assignment (1–5), assign a Rack Number, Module
Group (Word), Byte (Hi/Low), and Number of Words. The block transfer
instructions in the PLC program must be configured accordingly.
Rack Number
This can be any of the rack numbers which have been assigned to the
PanelView terminal. The terminal can be more than one rack number.
Module Group (Word)
This is also referred to as “group” or “word”. It can be any word (0–7)
within a PanelView terminal’s rack assignment.
Block Transfer Programming