Allen-Bradley 1788-CN2FFR, Руководство пользователя, Страница: 42 / 104

40 Rockwell Automation Publication 1788-UM057B-EN-P - September 2014
Chapter 2 Set Up in the Studio 5000 Logix Designer Application
The field device index, PV slot, and data type define where the connector points
to in the data structure of the controller tags.
Figure 6 - Example of a Field Device Index
•
For
Input : I.PV
connectors, the data types of float and integer both
connect to PVReal in the input image, while binary data types connect to
PVBinary.
•
For
Output : O.PV
connectors, the output image of the linking device
provides separate data types for float, integer, and binary.
• Network Publication and Network Subscription are used for control in
the field where data is sent from one field device to another without any
intervention from the LAS (master).
Each Network Publication connector must be given a unique name that is
used as the reference for the Network Subscription connectors.
IMPORTANT Network Publication connectors must be defined first.