Rockwell Automation 2711 PanelView 550/900 Profibus Communications User Guide - Manual (Page 28)

PROFIBUS DP Communications 28
Publication 2711-6.3
Some PanelView objects, such as:
•
Multistate indicators using Least Significant Bit (LSB) triggers.
•
Alarms using LSB triggers.
•
Piloted control lists using block write tags
can use more words of data than the tag address indicates. Keep in
mind that the maximum size of the modules exchanged between the
PanelView terminal and the DP Master is limited to 16 words for
Real time and 15 words for Multiplex modules.
For example, a multistate indicator cannot contain 500 states.
Because of the data exchange limitation, a multistate indicator is
limited to 256 states (16 words * 16 states) if located in the Real
Time module and 240 (15 words * 16 states) if located in the
Multiplex module.
Another example is the Block Write feature of the Piloted Control
List. You must make sure that the block write tag address is “low”
enough in the module’s data area so that all words displayed on the
PanelView terminal will fit into the module being returned to the DP
Master.
Application file transfers must be made using:
•
PCMCIA card
•
PanelView RS-232 port
Refer to the PanelBuilder user manual for instructions.
Note: Application files cannot be transferred to the PanelView
terminal over a PROFIBUS DP network.
Tags Using Multiple
PanelView Data Base
Words
Transferring
Application Files