{"product_id":"siemens-6es7551-1ab00-0ab0-tm-posinput-2-io-module","title":"Siemens 6ES7551-1AB00-0AB0 SIMATIC S7-1500 TM PosInput 2 2-Channel Position Detection I\/O Module","description":"\u003cp\u003eThe Siemens 6ES7551-1AB00-0AB0 is a SIMATIC S7-1500 TM PosInput 2 counter and position-detection module with 2 independent channels, each accepting an RS-422 incremental encoder or SSI absolute encoder at up to 4 MHz counting frequency with quadruple evaluation or a 2 MHz SSI clock. Each channel also provides 2 digital inputs and 2 digital outputs, and the module runs on 24 V DC.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6ES7551-1AB00-0AB0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-1500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTM PosInput 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirmware Version\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV1.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Voltage L+, rated\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Voltage L+, permissible range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19.2 to 28.8 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Consumption, max.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75 mA, without load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption from Backplane Bus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Loss, typ.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEncoder Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne 5 V (5.2 V +\/-2%, 300 mA max.) and one 24 V (300 mA max.) output per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 total, 2 per channel, parameterizable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 V DC rated, signal 1: +11 to +30 V, signal 0: -5 to +5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Input Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 000 m shielded \/ 600 m unshielded, max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 total, 2 per channel, transistor type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Output Switching Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 A resistive load, max., per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Output Rated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 A, signal 1, per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncremental Encoder Interface (RS-422)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInput frequency 1 MHz max., counting frequency 4 MHz max. with quadruple evaluation, cable length 32 m shielded max. at 1 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncremental Encoder Interface (5 V TTL)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePush-pull encoders only, input frequency 1 MHz max., counting frequency 4 MHz max. with quadruple evaluation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSSI Absolute Encoder Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-422 input signal, telegram length 10 to 40 bit parameterizable, clock frequency 2 MHz max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSSI Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320 m shielded max. at 125 kHz, down to 8 m at 2 MHz (Siemens type 6FX2001-5 cable, 24 V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSSI Code Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBinary code, Gray code, multiturn, singleturn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS 422, TTL 5 V (push-pull encoders only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsochronous Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFiltering\/processing time (TCI) 130 microseconds min., bus cycle time (TDP) 250 microseconds min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegrated Counters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2, up to 4 MHz counting frequency with quadruple evaluation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupply voltage monitoring, wire break, short-circuit, A\/B transition error, SSI telegram error\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagnostics Indication LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRUN (green), ERROR (red), MAINT (yellow), PWR (green), channel status (green), channel diagnostics (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS7-1500 mounting rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngineering\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSTEP 7 TIA Portal V12 (FW V1.0) through V15 (FW V1.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight (shipping)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.443 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eTwo independent counting channels each run up to 4 MHz counting frequency with quadruple evaluation on an RS-422 or 5 V TTL incremental encoder, or up to 2 MHz SSI clock on an absolute encoder with 10 to 40-bit telegrams in binary or Gray code, so one module covers either encoder type without a separate interface card per channel. The 2 DI and 2 DQ per channel support gate start\/stop, capture, and synchronization functions tied directly to the counting hardware, useful for latching a count on an external trigger without CPU-cycle jitter. Isochronous mode with a 250 microsecond minimum bus cycle time keeps position values synchronized to Motion Control functions in the S7-1500 CPU.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003ePosition and speed feedback on conveyors, indexing tables, and cut-to-length lines using RS-422 incremental encoders, plus absolute positioning with SSI encoders on axes that must retain position after a power cycle. The per-channel DI\/DQ pair lets a reference switch or brake output share the same channel as the encoder feedback.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960656748827,"sku":"6ES7551-1AB00-0AB0","price":702.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7551-1ab00-0ab0-tm-posinput-2-io-module.png?v=1789798310","url":"https:\/\/stoklink.com\/products\/siemens-6es7551-1ab00-0ab0-tm-posinput-2-io-module","provider":"Stoklink","version":"1.0","type":"link"}