| Error code | Description |
|---|---|
| 16#8181 | The module does not support this data transmission rate. |
| 16#8182 | The module does not support this parity setting. |
| 16#8183 | The module does not support this type of data flow control. |
| 16#8184 | Invalid value for "Response timeout". |
| 16#8281 | Negative acknowledgment when writing module |