RDM Warning Codes
该 parameter 用于以 string 形式读取最关键 warning codes 的 space-separated list。如果无法检测 warnings，请始终返回 0 characters。
应作为 supported parameter 暴露。
Wake Up mode 中，fixture 应显示 last session 的 Error Count。
| Data Type | DS_ASCII | PDL Size | 32 |
| Cmd Class | CC_GET | Unit | UNITS_NONE |
| Prefix | PREFIX_NONE | Default | 0x00 |
| Min | 0x00 | Max | 0x00 |
| Description | "WARNING_CODES" | ||
GET Command 0x8031
Controller Incoming Command:
| (Port ID) | (Msg. Count) | (Sub-Device) | |
| 0x01-0xFF | 0x00 | 0x0000 (Root) or 0x0001-0x0200 | |
| (CC) | (PID) | (PDL) | |
| GET_COMMAND | WARNING_CODES (0x8031) | 0x00 | |
Controller Response:
| (Response Type) | (Msg. Count) | (Sub-Device) | |
| ACK | 0x00-0xFF | Copy of Controller SD | |
| (CC) | (PID) | (PDL) | |
| GET_COMMAND_RESPONSE | WARNING_CODES (0x8031) | Variable (0 - 32) | |
| (PD) | |||
| ASCII text up to 32 characters. | |||
| Example "SERVREQ" | |||
