Steps to Create a PID Control Loop with the FP-3000 Network Module
I would like to create a PID control loop with my FP-3000 Network Module, but the manuals don't explain this very well. What do I need to do in order to create a PID control loop with the FP-3000?
URL: http://digital.ni.com/public.nsf/allkb/A6DE2C20F235217C8625688D006E9477
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Fieldbus Function Block Stays in OOS Mode
My function blocks won't transition into Auto mode. I have checked that the resource block is in Auto mode. Why won't my other blocks go into Auto mode?
URL: http://digital.ni.com/public.nsf/allkb/862567530005F09C862567700054502D
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Understanding the Device Descriptor (DD) Directory Hierarchy in the NIFBUS/DATA Directory
When looking in the data directory under my nifbus installation I see several directories with cryptic names. What are these?
URL: http://digital.ni.com/public.nsf/allkb/862567530005F09C86256770005909BA
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FP-3000 Does Not Appear in the Configurator
Problem: The FP-3000 does not appear in the Configurator. Solution: The FieldPoint Fieldbus network interface module (FP-3000) requires NIFBUS 2.3 or later in order to be seen on the bus. The FP-3000 requires that the host software be able to instantiate function blocks.
URL: http://digital.ni.com/public.nsf/allkb/862567530005F09C8625676A004D0FEA
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Fieldbus Configurator Questions on Downloads, VFDs, Synchronization and Failover
1. What granularity is supported when I download a Fieldbus segment or device? Can the whole segment be downloaded at once? Can devices be individually downloaded? Can a function block in a device be relinked without downloading the whole device?2. Does the system support field devices that
URL: http://digital.ni.com/public.nsf/allkb/250034E8D05391BA862566870051058C
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'Error: Can't Create Connection (NMIB is Full)' from Dialog Software While Opening FieldBus
I get an error message when I attempt to use the dialog software to open the FB VFD in a device, 'nifGetVfdList on link interface0-0, device DUT failed: Error: Can't create connection (the NMIB is full)', etc.
URL: http://digital.ni.com/public.nsf/allkb/C7EA120C8DD28C2B86256657007FD87B
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NI-FBUS configuration software - loop rates, macrocycle granularity, DCS use & address assignment
1) Does the Configurator software support configuring loops on the same segment to run at different rates?2) What granularity is supported when specifying macrocycles (i.e.; 250ms, 500ms, ...)3) Can the Configurator make connections to a DCS as part of the network control
URL: http://digital.ni.com/public.nsf/allkb/2C1C743DD0A7A0C286256626005430F5
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How would I create a connection from a compiler like C++ to an OLE custom interface?
How would I create a connection from a compiler like C++ to an OLE custom interface (like the exe for our servers)?
URL: http://digital.ni.com/public.nsf/allkb/24C1F74544030837862565EF004CBA4A
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NI-FBUS Alert Handling Problems
If the confirmation of an alert fails, then NI-FBUS does not re-try in all conditions, and the alert can be left there without confimation. Also, if the device re-uses an event number in an alert, then the NI-FBUS might regard the new alert as a re-transmission of the old alert. Therefore, the
URL: http://digital.ni.com/public.nsf/allkb/E10A57394E71733E8625659B0061D219
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What Does an 'RFR Reception Error' Indicate?
Problem: What does an "RFR Reception Error" indicate? Solution: The NI-FBUS Monitor will report different reception errors for problems with transmission/receipt of packets.
URL: http://digital.ni.com/public.nsf/allkb/D42B2A154D4FBCC3862564F10078A01B
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