Labview 7.1 And Omron PLC

[jey11]

Hi all,
I am planning to use Omron PLC (CQM1-CPU21) with Labview 7.1.

Just I need to read the cycle count from PLC via RS 232 communiction. Is that possible?
If yes, What is the cycle count read command or Where I can found these info.


Thanks

Jey

[Juan G]

Hello there,

f you Omron PLC is providing serial packets as an output, you can use your PC COM1 to communicate with your PLC. IF the output of your PLC requires an OPC server to translate de data from the PLC to a compatible data type for LabVIEW then you would need LabVIEW DSC module.

For the case in serial, check the specifications of the Omron PLC serial output and you can use the Serial read and write VIs to acquire the data.

Regards,

[LabViewGuruWannabe]

A quick internet search shows this might be helpful: PLCS.net - Interactive Q & A

If you can get your PLC connected properly to your PC, then try using the example vi's "Basic Serial Write and Read to communicate with your PLC.