03-06-2008 03:55 PM
03-10-2008 01:11 PM
Hello,
For the 9203, you stated that you had 35% crosstalk. How are you configuring the Current Input task? What is the range for current? You noted the value of 22 mA, thus I will assume your range is 0-20 mA. Is the task configured to this range?
How do you have the 9221 wired? Are both signals connected to the COM line?
The 9422 is a Digital Input module … since the Omron is an optical proximity switch, are you looking to acquire a digital signal? 0 Volts is a low and 16 Volts is high for the acquired signal. This model can do a Digital Input (DI) or Counter Input task. You will not need a counter to do a DI task.
Please describe your desired application in further detail and also take a look at the attached documentation. The Operating Instructions have figures that show proper connections for wiring. The KnowledgeBase explains a couple of concept that might relate to the bouncing signal on the 9221 and the crosstalk on the 9203. Please let me know if you have any questions or concerns after reviewing the attached documentation.
Product Manual: NI 9201/9221 Operating Instructions and Specifications
Product Manual: NI 9201/9221 Operating Instructions and Specifications
Product Manual: NI 9422 Operating Instructions and Specifications
KnowledgeBase: Troubleshooting Unexpected Voltages, Floating, or Crosstalk on Analog Input Channels
07-02-2015 05:46 PM
Hi,
I have a similar issue, I have an Omron optical sensor (Part# E3X-DA-S) we use for giving a once per rev. pulse indication to measure speed. This is physically wired into the NI9211 card, how do I design my block diagram architecture in LabVIEW to most efficiantly measure and log this signal as speed?
As you can probably tell I am somewhat new to LabVIEW, therefore in addition please can you also help me with the following?
Thanks
Craig