6602 Synchronize 4 outputs by matlab

Hello,
I am trying to use PCI-6602 counters to generate 4 pulses that start together. The width of these 4 pulses are ms level. However, the delay between channels is ms level too. So how to synchronize trigger the start and stop of 4 channels (with different duty cycle) by matlab?
I tried to use an external signal to trigger 4 channels together buy using 'addTriggerConnection', 'External' as source. But it didn't work. Matlab said Trigger and clock connections will not affect counter output channels.
And how to connect wires?
Thanks.

Hi Lindsay,
If you are using the MATLAB® Data Acquisition Toolbox™ to program the PCI-6602, please contact the MathWorks support team since they will be better suited to answer MATLAB programming questions.
To accomplish this in LabVIEW and our NI-DAQmx driver, you can use the information in these documents:
Using a Digital I/O Line as the Start Trigger with a PCI-6602 (you don't have to wire any external lines)
http://digital.ni.com/public.nsf/allkb/9052D691C228A56686256CFB00611D0D
Timing and Synchronization Features of NI-DAQmx (If you want to use an external line, take a look at Figure 4)
http://www.ni.com/white-paper/4322/en/
MATLAB® and Data Acquisition Toolbox™ is a registered trademark of The MathWorks, Inc.
Sincerely,
Aldo A
Applications Engineer
National Instruments

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Hello Matt,
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thanks
NPI_Chris wrote:
Hello all,
I have a very strange situation here and I am hoping someone can come up with some ideas for me...
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The problem is I have an Identical setup (as near as I can tell) setup on a server, and I receive a 1047 error, reporting an array size mismatch.
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Well you're welcome to do that--it will work just fine as long as you are configuring a start trigger.
<rant>
However, personally I really don't like putting multiple counter outputs in the same task. I have seen so many people assume that the counter outputs would be synchronized due to having them in the same task when this is not the case (you need to configure a start trigger in order to synchronize the counter outputs even if they are in the same task). This is the only case I can think of where multiple channels in a DAQmx task are not automatically synchronized.
As an example:
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</rant>
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Hi guys,
currently I tried to control a linearmotor using PCI-6052E and PCI-6602.
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hendro

Dear Jochen,
(1) Principally, I'd like to use PCI-6602 to be a motion encoder also be a counter (Is it possible? Due to the manual, it is possible). I expect to have all information, such as position, time, velocity, etc. from that motion encoder (or at least the position and time). It is also expected of using PCI-6602 to do all measurements that I mentioned before . My meaning is, after having a signal from the counter, that 'count' will be converted to desire units under other programs. So, in this case, PCI-6602 is only used to get the 'count'.
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