GE GFK0579B Scanner User Manual


 
4
Series 90–70 Remote I/O Scanner User’s Manual – July 199272
Viewing Remote Drop References
The Remote Drop Reference View screens show references assigned to individual
modules in a Remote Drop, and indicates reference overlaps as well as modules that
are outside the Remote I/O Scanners’s I/O Map. You can reach the Remote Drop
Reference View Screens by selecting REF VU (shift–F3) while in a Remote Drop
configuration, or by selecting Expand (F1) from any PLC Reference View screen while
the Remote I/O Scanner entry is highlighted.
Each Remote Drop Reference View screen shows the references of that data type in the
I/O Map followed by the references assigned to the modules in the Remote Drop.
%I
%Q
%AI
%AQ
Reference overlap (fatal)
Remote Drop
rack and slot
Module outside
the I/O Map
Drop ID of the
Remote Drop
Reference Conflicts in the PLC Configuration
The Remote Drop Reference View screens show conflicts between modules in the
Remote Drop. These conflicts are not shown on the PLC configuration Reference View.
Modules with overlaps are indicated with asterisks. The illustration above shows an
overlap in the Remote I/O Scanner’s Discrete Input (%I) Table between the modules in
Remote Drop #34, rack 0, slots 2 and 3. If you want to go directly to a configuration
screen to correct an overlap, highlight the entry and press F10 (zoom).
Modules Outside the I/O Map
If a module is outside the I/O Map, an exclamation mark (!) appears to the left of its
description. In the example above, the output module in slot 7, rack 0 of remote drop
#34 has a beginning reference address of %Q00129, but the I/O Map only includes
%Q00097–%Q00128.