AppendixC CommonQuestions
NI6013/6014 User Man ual C-6 ni.com
Timing and Digital I/O
Whattypes o f triggeringcan b e hardware-implementedon the
NI 6013/6014?
Digital triggering is hardware-supported on the NI 6013/6014.
Iam using one of the general-purpose counter/timers on the device, but
Ido notsee the counter/timero utput on the I/O connector.Why?
Ifyou are using the NI-DAQ language interface or LabWindows/CVI, you
mustconfigure the output line to output the signal to the I/O connector. Use
the Select_Signalfuncti on in NI-DAQto configure the output line.
Bydefault, all timing I/O lines except EXTSTROBE* are tri-stated.
Whata rethe PFIs and how do I configure these lines?
PFIsare Programmable Function Inputs. These lines serve as connections
to virtually all internal timing signals.
Ifyou are using NI-DAQ or Measurement Studio, use the Select_Signal
functionto route internal signals to the I/O connector, route external signals
to internal timing sources, or tie internal timing signals together.
Ifyou are using NI-DAQ with LabVIEW and you want to connect external
signalsources to the PFI lines, you can use the AI Clock Config, AI Trigger
Config,AO Clock Config, AO Trigger and Gate Config, and Counter Set
Attributeadvanced-level VIs to indicate which function the connected
signalserves. Use the Route Signal VI to enable the PFI lines to output
internal signals.
Caution Ifyou enab le a PFI line for output, do not connect any externalsignal sources to
it;if you do, you can damage the device, the computer, and the connected equipment.