| Numera o mataupu | 6ES7221-1BF32-0XB0 | 6ES7221-1BH32-0XB0 |
| | Fa'aigoa Fa'afuainumera SM 1221, 8DI, 24V DC | Fa'aigoa Fa'afuainumera SM 1221, 16DI, 24V DC |
| Fa'amatalaga lautele | | |
| Fa'ailoga ituaiga oloa | SM 1221, DI 8x24 V DC | SM 1221, DI 16x24 V DC |
| Tuuina atu eletise | | |
| Tau fa'atatau (DC) | 24 V | 24 V |
| laina fa'atagaina, tapula'a maualalo (DC) | 20.4 V | 20.4 V |
| laina fa'atagaina, tapula'a pito i luga (DC) | 28.8 V | 28.8 V |
| Fa'aulu i le taimi nei | | |
| mai pasi i tua 5 V DC, max. | 105 mA | 130 mA |
| Mea fa'akomepiuta | | |
| ● mai le mamafa mamafa L + (e aunoa ma se uta), max. | 4 mA; ta'i alaala | 4 mA; ta'i alaala |
| voluma gaosiga / ulutala | | |
| sapalai voltage o transmitters / ulutala | | |
| ● galuega o oloa / tuuina atu voltage mo transmitters | Ioe | Ioe |
| Malosi le malosi | | |
| Malosiaga gau, fa'ata. | 1.5W | 2.5 W |
| Mea fa'akomepiuta | | |
| Numera o mea faakomepiuta | 8 | 16 |
| ● i vaega o | 2 | 4 |
| Fa'ailoga uiga fa'aoga e tusa ai ma le IEC 61131, ituaiga 1 | Ioe | Ioe |
| Numera o mea e mafai ona pulea i le taimi e tasi | | |
| tulaga fa'apipi'i uma | | |
| - e oʻo atu i le 40 °C, maualuga. | 8 | 16 |
| faapipiiina faalava | | |
| - e oʻo atu i le 40 °C, maualuga. | 8 | 16 |
| - e oʻo atu i le 50 °C, maualuga. | 8 | 16 |
| fa'apipi'i tūsa'o | | |
| - e oʻo atu i le 40 °C, maualuga. | 8 | 16 |
| Volosa fa'aofi | | |
| ● Tau fa'atatau (DC) | 24 V | 24 V |
| ● mo faailo "0" | 5 V DC i le 1 mA | 5 V DC i le 1 mA |
| ● mo faailo "1" | 15 V DC i le 2.5 mA | 15 V DC i le 2.5 mA |
| Fa'aulu i le taimi nei | | |
| ● mo faailo "0", max. (taimi fa'amalie le taimi) | 1 mA | 1 mA |
| ● mo le faailo "1", min. | 2.5 mA | 2.5 mA |
| ● mo le faailo "1", fa'aoga. | 4 mA | 4 mA |
| Fa'atuai fa'aulu (mo le tau fa'atatau o le voluma fa'aulu) | | |
| mo mea fa'aoga masani | | |
| — parameterizable | Ioe; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms ma le 12.8 ms, e mafai ona filifilia i vaega e fa | Ioe; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms ma le 12.8 ms, e mafai ona filifilia i vaega e fa |
| mo mea fa'alavelave | | |
| — parameterizable | Ioe | Ioe |
| Uaea umi | | |
| ● talipupuni, max. | 500 m | 500 m |
| ● unshielded, max. | 300 m | 300 m |
| Fa'alavelave/diagnostics/fa'amatalaga tulaga | | |
| Alalaga | | |
| ● Fa'ailoga fa'ama'i | Ioe | Ioe |
| Fa'ailoga fa'ailoga LED | | |
| ● mo le tulaga o mea fa'aoga | Ioe | Ioe |
| E mafai ona tete'a | | |
| E mafai ona tu'ueseeseina mea fa'akomepiuta | | |
| ● va o alavai, i vaega o | 2 | 4 |
| Fa'ailoga ma le vasega o puipuiga | | |
| IP tikeri o le puipuiga | IP20 | IP20 |