Siemens 6ES7223-1BL32-0XB0, S7-1200 SM 1223, 16 digital inputs, 24 V DC, 8 A per module at 50 °C, -40 to 70 °C, current lifecycle.
| Parameter | Value |
|---|---|
| Digital inputs | 16 |
| Digital outputs | 16 |
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Permissible range, lower limit (DC) | 20.4 V |
| Permissible range, upper limit (DC) | 28.8 V |
| For signal "1" | 15 V DC at 2.5 mA |
| For signal "0" | 5 V DC at 1 mA |
| Current for signal "1" (typ.) | 4 mA |
| Max. | 70 °C |
| Power loss (typ.) | 4.5 W |
| Current consumption from backplane bus (5 V DC), max. | 185 mA |
| Current consumption from load voltage L+ (no load), max. | 4 mA; per channel |
| Short-circuit protection | No; to be provided externally |
| Isolation: channels to backplane bus | 500 V AC |
| Max. cable length, shielded | 500 m |
| Max. cable length, unshielded | 150 m |
| Parameter | Value |
|---|---|
| Parameterizable | Yes |
| Diagnostic alarm | Yes |
| Parameter | Value |
|---|---|
| IP protection rating | IP20 |
| Min. | -40 °C |
| Parameter | Value |
|---|---|
| Height | 100 mm |
| Width | 70 mm |
| Depth | 75 mm |
| Weight (approx.) | 310 g |
| Parameter | Value |
|---|---|
| CE mark | Yes |
| Parameter | Value |
|---|---|
| Horizontal Installation, Max. | 60 °C |
At 40 °C the module can handle 16 channels at full current; at 50 °C that drops to 8 A total across all inputs. Plan your wiring groups accordingly if the panel runs warm.
The module carries cULus, CE, CSA, UL, FM, KC, RCM, and marine approvals. That covers most panel certifications for North America, Europe, and Asia-Pacific without a separate variant.
It is approved under cULus, CE, CSA, UL, FM, KC, RCM, and marine (DNV/GL) standards. A single order code covers most global panel certifications.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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