SIEMETIC Replacement S7-300 SM 321 digital input, 32 DI
Brand: SIEMETIC replacement product
Siemens original part number: 6ES7321-1BL00-0AA0
SIEMETIC replacement part number: 6SM7321-1BL00-0AA0
Product group: PLC & Automation
Category: Legacy / Spares
Technical details: SM 321 digital input module, 32 DI, 24 V DC.
Original Siemens reference lifecycle: Product cancellation, effective 2025-10-01.
Request a quotation with the Siemens original part number or SIEMETIC replacement number. Our team will confirm exact compatibility, model, technical specifications, sourcing, availability and lead time before ordering.
Image information: AI-generated representative product-family illustration. This is not an authenticated manufacturer photograph. The exact model appearance and configuration may vary.
