Organize Tags For Produced Or Consumed Data - Allen-Bradley Logix 5000 Series Programming Manual
Controllers produced and consumed tags
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Also See for Logix 5000 Series:
- Reference manual (561 pages) ,
- Programming manual (92 pages) ,
- Instruction manual (676 pages)
Table of Contents
Chapter 1
Produce and Consume a Tag
Organize tags for
produced or
consumed data
Guideline
Create the tags at the controller
scope.
Use one of these data types:
• DINT
• REAL
• Array of DINTs or REALs
• User-defined
To share tags with a PLC-5C
controller, use a user-defined
data type.
14
To make sure consumers of produced tags can connect to Compact
GuardLogix 5380, CompactLogix 5380, CompactLogix 5480, ControlLogix
5580, and GuardLogix 5580 controllers, take the following steps:
•
For consumers running releases v17 and earlier that are consumers of a
produced tag from Compact GuardLogix 5380, CompactLogix 5380,
CompactLogix 5480, ControlLogix 5580, and GuardLogix 5580
controllers:
•
Verify that all multicast consumed tags of a produced tag are
configured with the same RPI. If they are not, some consumers will
fail to connect.
•
For multicast consumers running releases v18 and later, take one of
these steps:
•
Verify that all multicast consumed tags of a produce tag are
configured with the same RPI, or
•
Verify that all multicast consumers are configured to Allow
Consumed Tags To Use RPI Provided By Producer.
For more information on replacing a ControlLogix 5560/5570 controller with
a ControlLogix 5580 controller or a CompactLogix 5370 controller with a
CompactLogix 5380 controller, refer to the following publication in the
Rockwell Literature Library
Replacement Guidelines: Logix5000 Controllers Reference Manual (1756-
RM100).
Follow these guidelines when organizing tags for produced or consumed
data (shared data).
Details
Only controller-scoped tags can be shared.
To share other data types, create a user-defined data type that contains the required
data.
Use the same data type for the produced tag and corresponding consumed tag or tags.
To
This
Produce
Integers
Only one
REAL value
More than
one REAL
value
Rockwell Automation Publication 1756-PM011J-EN-P - February 2018
:
Then
Create a user-defined data type that contains an array of INTs
with an even number of elements, such as INT[2]. (When you
produce INTs, you must produce two or more.)
Use the REAL data type.
Create a user-defined data type that contains an array of
REALs.
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