Universal robots unable to read data from Modbus

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bchemelli 2019-01-07

I have been successful at writing data to a Modbus device, a Yaskawa controller. However I can not get data from the Modbus device to the Universal Robot. I have tried (Using the assignment function) CurrentPos= Modbus_get_signal_status(H_CurrentPos_Int, False). The signal is setup on the Modbus tab of the installation as a register input. The data type is INT from the Modbus device.

Does anyone have an example of this working?

Thanks,

Ben

matthewd92 2019-01-07

Any reason you aren’t simply selecting the input from the drop down list in the assignments formula builder?

mkardasinski 2019-01-08

More than likely you have a mistake in the address that you defined as H_CurrentPos_Int. I would double check this

bchemelli 2019-01-08

Thanks, for the tips what would not work yesterday is working today.

Thanks,

Ben