Model no
SM 1221 DI 8x24 V DCArticle No
H7 221-1BF32-0XB0Description
Digital input module DI8 x 24VDC sinking/sourcing typeWxHxD（mm）
45x100x75mm
| Standard | Model no | SM 1221 DI 8x24 V DC |
|
Article No |
H7 221-1BF32-0XB0 | |
|
Description |
Digital input module DI8 x 24V DC |
|
Conventional norm |
Dimensions WxHxD（mm） |
45×100×75mm |
|
Power Consumption |
1.5W | |
|
Available current（SM bus） |
105mA | |
|
Available current（Sensor power 24V） |
4mA for each input point used |
| Digital input |
Input points |
8 |
| Input type | The sinking type /sourcing type | |
| Rated voltage | 4mA 24VDC，Rating value | |
| Maximum continuousallowable voltage | max. 30V DC | |
| Surge voltage (Maximum) | 35V DC, lasting 0.5s | |
| Logic 1 signal (Minimum) | 2.5mA 15V DC | |
| Logic 0 signal (Maximum) | 1mA 5V DC | |
| Photoelectric isolation (Field side andLogic side) | 500V AC, lasting 1 min | |
| Isolation group | 2 | |
| Filtering time | 0.2, 0.4, 0.8, 1.6, 3.2, 6.4 and 12.8 ms（optional, 4 inputs form one group ） |
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