{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7138-4DF01-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7138-4DF01-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7138-4DF01-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4DF01-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC DP, Electronics module for ET 200S, 1 SI serial interface 1-channel, 15 mm width, RS232/422/485, ASCII, 3964(R), 24 V DC, 0–60 °C.","salesMarkdown":"## Module identity and key constraints The Siemens 6ES7138-4DF01-0AB0 is a 15 mm-wide electronics module for the ET 200S distributed I/O system, handling one serial interface channel over RS232, RS422, or RS485. It runs ASCII and 3964(R) protocols up to 115.2 kbit/s, half- or full-duplex depending on the physical layer. Powered from the 24 V DC backplane supply — reverse polarity protected, draws up to 120 mA from L+ and 10 mA from the backplane bus. Typical power loss is 1.2 W. ## Integration note — width and wiring At 15 mm width it fits into one ET 200S terminal module slot. The RS232 interface brings out eight signals (TxD, RxD, RTS, CTS, DTR, DSR, DCD, PE); the other interfaces use two-wire (A/B) lines with GND. Cable length reaches 1 200 m on those interfaces. Ambient range is 0 to 60 °C.","metaTitle":"Siemens 6ES7138-4DF01-0AB0 ET 200S Serial Module, 15 mm","metaDescription":"SIMATIC DP ET 200S serial interface module, RS232/422/485, ASCII/3964(R), 24V DC, 1.2W, 0–60°C, current lifecycle. Source to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Max.":"60 °C","Min.":"0 °C","Send":"32 byte; With IM151-1 Standard as of 6ES7151-1AA04-0AB0; with IM151-1 High Feature as of 6ES7151-1BA01-0AB0; otherwise 8 bytes","ASCII":"224 byte","Depth":"52 mm","Width":"15 mm","title":"6ES7138-4DF01-0AB0","Height":"81 mm","Parity":"none, odd, even, any","RS 422":"TxD(A), RxD(A), TxD(B), RxD(B), GND","RS 485":"R/T(A), R/T(B), GND","RS 232C":"RS 232C signals: 8 (TxD, RxD, RTS, CTS, DTR, DSR, DCD, PE)","Receive":"32 byte; With IM151-1 Standard as of 6ES7151-1AA04-0AB0; with IM151-1 High Feature as of 6ES7151-1BA01-0AB0; otherwise 8 bytes","3964 (R)":"224 byte","Receive RxD":"Yes","description":"SIMATIC DP, Electronics module for ET 200S, 1 SI serial interface 1-channel, 15 mm width, RS232/422, 485 ASCII, 3964R","Transmit TxD":"Yes","Standard blocks":"5 100 byte; S_SEND 2700, S_RCV 2400, S_XON 2600, S_RTS 2600, S_V24 2700, S_VSTAT 1800, S_VSET 1800","Weight, approx.":"50 g","lifecycle_stage":"current","Power loss, typ.":"1.2 W","Rated value (DC)":"24 V","Bits per character":"7 or 8","Cable length, max.":"1 200 m","Group error SF (red)":"Yes","Number of interfaces":"1","Bits per character frame":"10","Number of start/stop bits":"1 or 2","with ASCII protocol, max.":"115.2 kbit/s; Full duplex: 110, 300, 600, 1 200, 2 400, 4 800, 9 600, 19 200, 38 400, 57 600, 76 800, 115 200 bps","Reverse polarity protection":"Yes","from supply voltage L+, max.":"120 mA","with 3964 (R) protocol, max.":"115.2 kbit/s; half duplex: 110, 300, 600, 1 200, 2 400, 4 800, 9 600, 19 200, 38 400, 57 600, 76 800, 115 200 bps","from backplane bus 3.3 V DC, max.":"10 mA","between RS 232 and internal power supply":"Yes","Between RS 422/485 and internal power supply":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$583.00 – $1,487.45","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5444c2a6d45e12e1a825e1259ff12c7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=530678&mlfb=6ES7138-4DF01-0AB0"},"ai":{"faq":[{"question":"What is the maximum ambient temperature for this module?","answer":"The module is rated for 0 °C to 60 °C operating ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7138-4DF01-0AB0","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/6ES7138-4DF01-0AB0 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}}