Rockwell-automation 1756-CFM ControlLogix Configurable Flowmeter Modul Manual de usuario Pagina 33

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33Rockwell Automation Publication 1756-UM010B-EN-P - December 2011
Configurable Flowmeter Module Features and Operational Modes 33
Producer/Consumer Model
By using the Producer/Consumer model, ControlLogix CFM modules can
produce data without having been polled by a controller first. The modules
produce the data and any other owner controller device can decide to consume
it.
EXAMPLE
In this scenario, Disable Keying allows I/O
communication:
The module configuration is for a 1756-IA16 digital input
module. The physical module is a 1756-IB16 digital input
module. In this case, communication is allowed because the
two digital modules share common data formats.
IMPORTANT
Changing electronic keying selections online may cause the
I/O communication connection to the module to be
disrupted and may result in a loss of data.
Module Configuration
Vendor = Allen-Bradley
Product Type = Digital Input
Module
Catalog Number = 1756-IA16
Major Revision = 2
Minor Revision = 1
Physical Module
Vendor = Allen-Bradley
Product Type = Digital Input
Module
Catalog Number = 1756-IB16
Major Revision = 3
Minor Revision = 2
Communication is allowed.
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