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6ES7321-1BL00-0AA0
6ES7321-1BL00-0AA0 Siemens Siemens SIMATIC S7-300: SM 321 digital input, 32 points, 24V DC
Production ended Oct 2025
Digital input
Identification
- Part number6ES7321-1BL00-0AA0
- ManufacturerSiemens
- FamilySiemens SIMATIC S7-300
- LifecycleProduction ended Oct 2025
Keep running, or migrate?
Siemens' recommended path is S7-1500 with the TIA Portal migration tools. OEM spares officially available until 2033, with price increases already announced.
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