| Data Type | 数据类型 | Comment |
| Boolean | 布尔型 | Single bit |
| Byte | 字节型 | Unsigned 8 bit value |
| Char | 字符型 | Signed 8 bit value |
| Word | 字型 | Unsigned 16 bit value |
| Short | 短整型 | Signed 16 bit value |
| DWord | 双字型 | Unsigned 32 bit value |
| Long | 长整型 | Signed 32 bit value |
| BCD | Data Type | Two byte packed BCD, four decimal digits |
| LBCD | Data Type | Four byte packed BCD, eight decimal digits |
| Float | 浮点型 | 32 bit IEEE floating point |
| String | 字符串型 | Null terminated character array |
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