The Device ID in packet does not match the ID of the device.

Verify that the correct Device ID has been specified in Device Properties.

Invalid memory type.

1. Verify that the memory type for the address in question is correct for the specified model. 2. Consult the device manufacturer's help documentation for memory types/ranges.

1. Invalid address for specified memory type. 2. Transfer across a memory boundary.

1. Verify that the offset for the address in question is correct for the specified model. 2. Verify that no request exceeds the range for that memory type. 3. Consult the device manufacturer's help documentation for memory types/ranges.

1. Incorrect header checksum. 2. Missing or invalid start of header (SOH) or end transmission block (ETB). 3. Invalid header character. 4. Invalid address for specified memory type.

1. Check all hardware (including cabling) for faults, loose connections and proximity to noisy sources. 2. Verify proper communication settings (such as parity, flow control, baud rate and stop bits). Correct the settings in Channel Properties accordingly.