{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7138-6AA01-2BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7138-6AA01-2BA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7138-6AA01-2BA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7138-6AA01-2BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens ET 200SP electronic module, 6ES7138-6AA01-2BA0, 24 V supply, 15 x 73 x 58 mm, 16 input bytes, 12 output bytes, counter/encoder, fast mode, diagnostic alarms.","salesMarkdown":"The 6ES7138-6AA01-2BA0: This ET 200SP slice takes a 24 V feed with L+ tolerance down to 23.2 V and sips 1 W typ. It fits a 15 mm bay in BU type A0 — no extra DIN rail gymnastics. Input side handles 16 byte of I/O, with 4 byte switched to fast mode for encoder counts that need sub-50 µs edge resolution. Outputs carry 12 byte total, with 4 byte reserved for motion control; fast mode zeroes the output byte allocation. For signal levels: a '0' lives between -5 V and +5 V; '1' needs +11 to +30 V. That gives headroom on 24 V sensor returns even after a 0.8 V drop. Wire-break and short-circuit detection are baked in, and the group error alarm fires without an extra diagnostic module. ## Integration and tie-down Mounts on BaseUnit type A0 — that's the key mechanical constraint. Depth is 58 mm, width 15 mm, height 73 mm. Wait until the 24 V rail is stable before slotting; the module's input threshold below 11 V for a '1' means a sagging bus during panel power-up won't cause false counts. Cable runs: shielded max 1 000 m, unshielded 600 m; longer runs need a line driver or repeater. The module populates 16 input byte and 12 output byte in standard mapping.","metaTitle":"Siemens 6ES7138-6AA01-2BA0 ET 200SP Counter Module, 24 V","metaDescription":"Active-production ET 200SP electronic module for high-speed counting/encoders. 16 input bytes (4 in fast mode), 12 output bytes, wire-break detection, diagnostic alarm. 24 V supply","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Output Modules"],"specifications":{"24 V":"Yes; L+ (-0.8 V)","Depth":"58 mm","Probe":"Yes","Width":"15 mm","title":"6ES7138-6AA01-2BA0","Height":"73 mm","Inputs":"16 byte; 4 bytes in Fast mode","Capture":"Yes","Counter":"Yes","Outputs":"12 byte; 4 bytes for Motion Control, 0 bytes for Fast mode","I&M data":"Yes; I&M0 to I&M3","Fast mode":"Yes","Wire-break":"Yes","Group error":"Yes","Lower Limit":"48 Ω","Upper Limit":"12 kΩ","description":"SIMATIC ET 200SP, TM count 1x 24 V Counter module, 1 channel for 24 V incremental encoder or pulse encoder, 3 DI, 2 DQ Suitable for BU type A0, packing quantity: 10 units","2-Wire Sensor":"Yes","Input voltage":"24 V","Pulse Encoder":"Yes","Short-circuit":"Yes","Software gate":"Yes","For Signal \"0\"":"-5 ... +5 V","For Signal \"1\"":"+11 to +30V","Shielded, Max.":"1 000 m","Gate start/stop":"Yes","Parameterizable":"Yes","Synchronization":"Yes","Weight, approx.":"45 g","lifecycle_stage":"current","\"0\" To \"1\", Max.":"50 µs","\"1\" To \"0\", Max.":"50 µs","Diagnostic alarm":"Yes","Firmware version":"V2.0","Isochronous mode":"Yes","Power loss, typ.":"1 W","Rated value (DC)":"24 V","Unshielded, Max.":"600 m","usable BaseUnits":"BU type A0","Number of outputs":"1","Source/sink input":"Yes","to SIMATIC S7-300":"Yes","to SIMATIC S7-400":"Yes","Automatic encoding":"Yes","FW update possible":"Yes","Hardware interrupt":"Yes","Number of counters":"1","On Lamp Load, Max.":"10 Hz","to SIMATIC S7-1200":"Yes","to SIMATIC S7-1500":"Yes","At \"0\" To \"1\", Min.":"6 µs; for parameterization \"none\"","At \"1\" To \"0\", Min.":"6 µs; for parameterization \"none\"","Continuous counting":"Yes","Direction dependency":"Yes","For Signal \"1\", Min.":"23.2 V; L+ (-0.8 V)","For Signal \"1\", Typ.":"2.5 mA","Output current, max.":"300 mA","Velocity measurement":"100 ppm; depending on measuring interval and signal evaluation","Event-controlled stop":"Yes","Frequency measurement":"100 ppm; depending on measuring interval and signal evaluation","Input frequency, max.":"200 kHz","Isolation tested with":"707 V DC (type test)","Number of comparators":"2","Channel status display":"Yes; green LED","For Module Diagnostics":"Yes; green/red DIAG LED","Type of digital output":"Transistor","Incremental acquisition":"Yes","Counting frequency, max.":"800 kHz; with quadruple evaluation","Current per module, max.":"1 A","Floor Installation, Max.":"50 °C","Floor Installation, Min.":"-30 °C","Number of digital inputs":"3","Response threshold, typ.":"1 A","Short-circuit protection":"Yes; electronic/thermal","Current consumption, max.":"60 mA; without load","Mechanical coding element":"Yes","Number of digital outputs":"2","With Inductive Load, Max.":"0.5 Hz; Acc. to IEC 60947-5-1, DC-13; observe derating curve","With Resistive Load, Max.":"10 kHz","Ceiling Installation, Max.":"50 °C","Ceiling Installation, Min.":"-30 °C","Cycle duration measurement":"100 ppm; depending on measuring interval and signal evaluation","For Signal \"1\" Rated Value":"0.5 A; Per digital output","Controlling a digital input":"Yes","Freely usable digital input":"Yes","Frequency measurement, max.":"800 kHz","Frequency measurement, min.":"0.04 Hz","Reverse polarity protection":"Yes","Vertical Installation, Max.":"50 °C","Vertical Installation, Min.":"-30 °C","to standard PROFIBUS master":"Yes","Cable length, shielded, max.":"600 m; depending on input frequency, encoder and cable quality; max. 50 m at 200 kHz","Freely usable digital output":"Yes","Pulse Encoder With Direction":"Yes","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"-30 °C","Monitoring the supply voltage":"Yes","Substitute values connectable":"Yes; Parameterizable","Suitable for safety functions":"No","Signal filter, parameterizable":"Yes","Counting range, parameterizable":"Yes","Digital inputs, parameterizable":"Yes","Hardware gate via digital input":"Yes","Measuring time, parameterizable":"Yes","to standard PROFINET controller":"Yes","Can be changed from user program":"Yes","Counter response parameterizable":"Yes","Cycle duration measurement, max.":"25 s","Cycle duration measurement, min.":"1.25 µs","Digital outputs, parameterizable":"Yes","Synchronization via digital input":"Yes","Type of mechanical coding element":"type B","Permissible Voltage At Input, Max.":"30 V","Permissible Voltage At Input, Min.":"-30 V; -5 V continuous, -30 V brief reverse polarity protection","For Signal \"1\" Minimum Load Current":"2 mA","Suitable for S7-1500 Motion Control":"Yes","permissible range, lower limit (DC)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","Dynamic measurement period adjustment":"Yes","For Signal \"0\" Residual Current, Max.":"0.5 mA","Number of thresholds, parameterizable":"2","Between The Channels And Backplane Bus":"Yes","Can be used with TO High_Speed_Counter":"Yes","For Signal \"1\" Permissible Range, Max.":"0.6 A; Per digital output","PROFIBUS from GSD version/GSD revision":"One GSD file each, Revision 3 and 5 and higher","PROFINET from GSD version/GSD revision":"GSDML V2.34","Switching tripped by comparison values":"Yes","Status indicator forward counting (green)":"Yes","Monitoring of the supply voltage (PWR-LED)":"Yes; green PWR LED","Status indicator backward counting (green)":"Yes","A/B transition error at incremental encoder":"Yes","Installation altitude above sea level, max.":"5 000 m; Restrictions for installation altitudes > 2 000 m, see manual","Limitation of inductive shutdown voltage to":"L+ (-53 V)","STEP 7 configurable/integrated from version":"V5.6 and higher","Permissible Quiescent Current (2-Wire Sensor), Max.":"1.5 mA","Incremental encoder with A/B tracks, 90° phase offset":"Yes","STEP 7 TIA Portal configurable/integrated from version":"STEP 7 V15 SP1 or higher","Color code for module-specific color identification plate":"CC00","Pulse Encoder With One Impulse Signal Per Count Direction":"Yes","Incremental encoder with A/B tracks, 90° phase offset and zero track":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$405.52","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1a449dc1331c7fc9b4b6b618352a6b6a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1377341&mlfb=6ES7138-6AA01-2BA0"},"ai":{"faq":[{"question":"Does this module support fast-mode counting?","answer":"Yes, it has a fast mode that allocates 4 input bytes for high-speed encoder signals and zero output bytes (motion control uses 4 output bytes separately)."},{"question":"What diagnostics does it have?","answer":"Wire-break detection, short-circuit detection, group error alarm, and diagnostic alarm. It also includes parameterizable gate start/stop and synchronization."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7138-6AA01-2BA0","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/6ES7138-6AA01-2BA0 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}}