{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7972-0CA23-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7972-0CA23-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7972-0CA23-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7972-0CA23-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7 PC Adapter V5.1, order code 6ES7972-0CA23-0XA0, RS232 to RS485 converter for S7-300/400, C7, M7, without RS232 cable.","salesMarkdown":"## PC Adapter V5.1 for S7-300/400 connectivity The Siemens 6ES7972-0CA23-0XA0 is a SIMATIC S7 PC Adapter V5.1 that connects a PC's RS232 serial port to the MPI/Profibus RS485 port on S7-300/400, C7, and M7 controllers. It converts RS232 to RS485, enabling programming and diagnostics through Step 7 software. This adapter is listed as a spare part and does not include the RS232 cable — you need a standard null-modem cable (typically a 9-pin D-sub female-to-female) to connect the adapter to your PC's COM port. ## Compatibility and cable note The adapter is designed for S7-300/400, C7, and M7 systems — it is not compatible with the S7-1200 or S7-1500 families, which use a different programming interface (Ethernet or USB). Because the RS232 cable is not included, factor that into your procurement. A standard DB9 null-modem cable with female connectors on both ends mates with the adapter's 9-pin D-sub port and your PC's serial port.","metaTitle":"Siemens 6ES7972-0CA23-0XA0 PC Adapter V5.1, RS232 to RS485","metaDescription":"Siemens SIMATIC S7 PC Adapter V5.1 for S7-300/400, C7, M7. Converts RS232 to RS485. Mature lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Accessories"],"specifications":{"title":"6ES7972-0CA23-0XA0","description":"*** SPARE PART*** SIMATIC S7, PC ADAPTER V5.1 FOR CONNECTION OF S7-300/400, C7, M7; FOR CONVERSION OF RS232 TO RS485; W/O RS232 CABLE","lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$348.68 – $735.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/222de8ebbf57af30d36a1d6f99f77cbe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=27597&mlfb=6ES7972-0CA23-0XA0"},"ai":{"faq":[{"question":"Where can I buy 6ES7972-0CA23-0XA0?","answer":"Submit a request for quote to confirm current availability and pricing — the mature lifecycle stage means stock is not held on a standing basis."},{"question":"Is 6ES7972-0CA23-0XA0 compatible with S7-1200?","answer":"No, this adapter is designed for S7-300/400, C7, and M7 systems. The S7-1200 uses a different programming interface and is not compatible with this RS232-to-RS485 adapter."},{"question":"Does 6ES7972-0CA23-0XA0 include an RS232 cable?","answer":"No, the RS232 cable is not included. You will need a standard DB9 null-modem cable with female connectors on both ends to connect the adapter to your PC's serial port."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7972-0CA23-0XA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7972-0CA23-0XA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}