Rockwell-automation 1756-CFM ControlLogix Configurable Flowmeter Modul Uživatelský manuál Strana 17

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17Rockwell Automation Publication 1756-UM010B-EN-P - December 2011
Chapter
2
Configurable Flowmeter Operation in
the ControlLogix System
What This Chapter Contains
This chapter describes how the CFM module works within the ControlLogix
system.
In traditional industrial applications, controllers poll Flowmeter modules to
obtain their status. Controllers also send commands to the Flowmeter
modules. Retrieving Flowmeter status and sending commands occurs during
the normal I/O program scan.
ControlLogix CFM modules do not follow the traditional operational manner.
Instead, they use the Producer/Consumer Model
(see page 33 for more
information) to produce data without having been polled by a controller first.
Topic Page
Ownership 19
Using RSNetWorx and RSLogix 5000 Software 19
Connections 21
Configurable Flowmeter Modules in a Local Chassis 23
Requested Packet Interval (RPI) 23
Configurable Flowmeter Modules in a Remote Chassis 24
Listen-Only Connections 22
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