| 1. | See the code table for output card of digital quantity 见"数字量输出卡"代码表 |
| 2. | See the code table for input card of digital quantity 见"数字量输入卡"代码表 |
| 3. | Digital quantity output card do181 wiring diagram 数字量输出卡do181接线图 |
| 4. | Digital quantity input card di181 wiring diagram 数字量输入卡di181接线图 |
| 5. | Studies on digital addition technology in incremental encoder 增量式编码器数字量相加技术的研究 |
| 6. | Design of 16 - channel photoelectric isolation digital signal input board 16路光电隔离数字量输入板设计 |
| 7. | Output card code of digital quantity 数字量输出卡代码 |
| 8. | Digital quantity input card do181 数字量输入卡do181 |
| 9. | Input card code of digital quantity 数字量输入卡代码 |
| 10. | Output channel of digital quantity 数字量输出通道 |