These remedies apply to the case when you receive no data and you get this warning message:
'serialport' unable to read any data.
When using the serialport interface for:
Reading ASCII (text) data using the
Reading binary data using the
Reading binblock data using the
These are possible causes and remedies:
|An invalid command was sent to the device, so there is a problem reading the response to the command.||Check your device manual for proper command formatting.|
|Your device is connected to an incorrect serial port.||Verify that your device is connected to the specified port. It must match the port you
specify when you create the |
|An incorrect write terminator was sent to the instrument before attempting to read data, so there is no data to read.||Verify that the |
|Your device is not configured to send data on the serial port.||Verify the device communication settings. For more information about communication settings, see Create Serial Port Object and Configure Serial Port Communication Settings.|
More Troubleshooting Help
For more information about troubleshooting the Serial interface, including supported platforms, adaptor requirements, configuration and connection, and other troubleshooting tips, see Troubleshooting Serial Port Interface.