Verifying Basic Receive Functionality
To verify the iVu can receive request frames from the requesting device:
1. On the iVu Sensor, go to the Main Menu > System > Communications > Serial I/O > Port Status screen.
2. On the requesting device, transmit one or more bytes to the iVu sensor.
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If the data byte values appear correct and the number sent by the requesting device matches the number
received by the iVu sensor, then the transmit/receive functionality is working properly.
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If the connection is incorrect (electrically) or if the baud rate is mismatched, no bytes will appear in the
upper field on the Port Status screen.
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If the connection is correct (electrically), bytes will appear in the upper field of the Port Status screen in the
order they were received.
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If the Port Status: Errors at the bottom of the Port Status screen highlights red, then the connection is
correct electrically but there is likely a settings mismatch between the iVu sensor and the requesting
device. Verify the settings on both devices.
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If the bytes appear with no errors but appear incorrect or there are too many or too few, then the port
settings (for example, baud rate) are likely mismatched in a way that does not generate serial hardware
errors. Verify the settings on both devices match exactly.
Verifying Basic Transmit Functionality
The iVu command channel will only send response frames to the requesting device if it receives a valid end-of-frame
delimiter from the requesting device. To verify transmit functionality:
1. Transmit an end-of-frame delimiter sequence from the requesting device to the iVu sensor. For example, in a
terminal program, simply hit Enter.
If a valid end-of-frame delimiter is received, the iVu sensor will immediately transmit a short error message back
to the requesting device (for example, ERROR 10000_COMMAND_MISSING).
2. Verify that the number of bytes sent by the requesting device are the same as the number shown in the lower field
of the Port Status screen on the iVu sensor. Go to the Main Menu > System > Communications > Serial I/O >
Port Status screen.
3. If the byte count does not match, re-verify that the settings on both devices match exactly. If no bytes are
received, re-check the wiring.
If the correct response frame is received, then basic electrical and port settings are correct.
iVu Plus TG Gen2 Image Sensor
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