| Serial number | Function | Instructions | Instruction parameter | Explain |
| 1 | Handshake | 0 × 04 | N/C | The screen receives the handshake command number and returns 55 to the host to indicate the handshake is successful. Return format: EE 55 FF FC FF FF. |
| 2 | Update network data | 0 × B1 + 0 × 11 | Screen_id + Control_id + Strings | Enter text data for the specified text control: Screen_ id: The display interface ID of Network parameter. Control_ id: The display control ID of Network parameter. Strings: Update network settings parameters. |
| 3 | Read setup parameters | 0 × B1 + 0 × 10 | Screen_id + Control_id + Strings | Read parameters for user setting: Screen_ id: Setting the parameter display interface ID. Control_ id: Setting the parameter display control ID. Strings: Update settings parameters. |
| 4 | Read user function operations | 0 × B1 + 0 × 00 | Screen_id | Switch to the interface of user selected function: Screen_ id: Function interface ID |
| … | … | … | … | … |