| Inombolo yenqaku | 6ES7221-1BF32-0XB0 | 6ES7221-1BH32-0XB0 |
| | Igalelo leDijithali SM 1221, 8DI, 24V DC | Igalelo leDijithali SM 1221, 16DI, 24V DC |
| Iinkcukacha zajikelele | | |
| Uhlobo lwemveliso | SM 1221, DI 8x24 V DC | SM 1221, DI 16x24 V DC |
| I-voltage yokubonelela | | |
| Ixabiso elilinganisiweyo (DC) | 24 V | 24 V |
| uluhlu oluvumelekileyo, umda ophantsi (DC) | 20.4 V | 20.4 V |
| uluhlu oluvumelekileyo, umda ophezulu (DC) | 28.8 V | 28.8 V |
| Igalelo langoku | | |
| ukusuka kwibhasi yenqwelomoya 5 V DC, ubuninzi. | 105 mA | 130 mA |
| Iingeniso zedijithali | | |
| ● ukusuka kwi-voltage yomthwalo L+ (ngaphandle komthwalo), ubuninzi. | 4 mA; ngetshaneli nganye | 4 mA; ngetshaneli nganye |
| i-voltage / i-header yemveliso | | |
| i-voltage yokubonelela ngee-transmitters/header | | |
| ● umsebenzi wemveliso / umbane wokubonelela ngee-transmitters | Ewe | Ewe |
| Ukulahleka kwamandla | | |
| Ukulahleka kwamandla, uhlobo. | 1.5 W | 2.5 W |
| Iingeniso zedijithali | | |
| Inani leengeniso zedijithali | 8 | 16 |
| ● kumaqela | 2 | 4 |
| Ijika leempawu zokufaka ngokuhambelana ne-IEC 61131, uhlobo 1 | Ewe | Ewe |
| Inani leengeniso ezilawulwayo ngaxeshanye | | |
| zonke iindawo zokufakela | | |
| — ukuya kuthi ga kwi-40°C, ubuninzi. | 8 | 16 |
| ufakelo oluthe tye | | |
| — ukuya kuthi ga kwi-40°C, ubuninzi. | 8 | 16 |
| — ukuya kuthi ga kwi-50°C, ubuninzi. | 8 | 16 |
| ufakelo oluthe nkqo | | |
| — ukuya kuthi ga kwi-40°C, ubuninzi. | 8 | 16 |
| I-voltage yokufaka | | |
| ● Ixabiso elilinganisiweyo (DC) | 24 V | 24 V |
| ● yesiginali "0" | 5 V DC kwi-1 mA | 5 V DC kwi-1 mA |
| ● yesiginali "1" | 15 V DC kwi-2.5 mA | 15 V DC kwi-2.5 mA |
| Igalelo langoku | | |
| ● yesignali "0", ubuninzi. (umsinga ovuselelweyo ovumelekileyo) | 1 mA | 1 mA |
| ● yesignali "1", umzuzu. | 2.5 mA | 2.5 mA |
| ● yesignali "1", uhlobo. | 4 mA | 4 mA |
| Ukulibaziseka kokufaka (kwixabiso elilinganisiweyo levolthi yokufaka) | | |
| kwiingeniso eziqhelekileyo | | |
| — inokwenzeka ngokweeparameter | Ewe; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms kunye ne-12.8 ms, zikhethwa ngokwamaqela abantu abane | Ewe; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms kunye ne-12.8 ms, zikhethwa ngokwamaqela abantu abane |
| ukuze kungene izinto eziphazamisayo | | |
| — inokwenzeka ngokweeparameter | Ewe | Ewe |
| Ubude bekhebula | | |
| ● ikhuselwe, ubuninzi. | 500 m | 500 m |
| ● engafakwanga khuselo, ubuninzi. | 300 m | 300 m |
| Ukuphazamiseka/ukuxilongwa/ulwazi ngesimo | | |
| Iialamu | | |
| ● I-alamu yokuxilonga | Ewe | Ewe |
| I-LED ebonisa ukuxilongwa | | |
| ● malunga nemeko yeengeniso | Ewe | Ewe |
| Ukwahlukana okunokwenzeka | | |
| Igalelo ledijithali lokwahlulahlula elinokubakho | | |
| ● phakathi kweetshaneli, ngamaqela | 2 | 4 |
| Umgangatho kunye nodidi lokhuseleko | | |
| Inqanaba lokhuseleko lwe-IP | IP20 | IP20 |