{"product_id":"yokogawa-aap135-s50-pulse-input-module-centum-vp-8-channel","title":"Module d'entrée impulsions CENTUM VP 8 canaux Yokogawa AAP135-S50","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAP135-S50 (AAP135)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-precision, 8-channel isolated pulse input module designed for the Yokogawa CENTUM VP distributed control system (DCS). This module is engineered to interface with field devices providing contact ON\/OFF, voltage pulse, or current pulse signals, supporting an input frequency range from 0 to 10 kHz. Ideal for flow metering, turbine speed monitoring, and totalizing applications in power plants and chemical processing facilities, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAP135\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures maximum signal integrity through comprehensive channel-to-channel isolation. Its architecture supports dual-redundant configurations, allowing for seamless failover in mission-critical loops. By utilizing a 2 ms data update period and integrated chatter elimination filters, the module provides the rapid, clean data acquisition necessary to reduce system latency and minimize process downtime.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAP135-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodel number follows Yokogawa's structured nomenclature to define its hardware grade and certification level:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-S:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesignates the Standard type module for general-purpose industrial control applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e5:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndicates the hardware is configured with no explosion protection, suitable for safe-area installation or within purged cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifies the Basic type configuration, providing standard pulse counting and status input functionality without additional specialized hardware modifiers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAAP135-S50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYokogawa\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJapan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8, isolated channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 10 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMinimum Pulse Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40 microseconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eData Update Period\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-20 to 70 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e300 mA (5 V DC), 400 mA (24 V DC)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e32.8 x 130 x 107.5 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.3 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat types of field signals can the AAP135-S50 process?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is highly versatile, supporting 2-wire configurations for contact ON\/OFF, voltage pulses, and current pulses (with transmitter power supply available), as well as 3-wire power-supply-type voltage pulses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module handle mechanical relay \"chattering\"?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAP135\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincludes a configurable digital filter designed to eliminate signal noise and chattering. When the pulse input is a dry contact (mechanical relay) at frequencies up to 10 Hz, this filter prevents false pulse counts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of channel-to-channel isolation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike group-isolated modules, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAP135\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis isolated between each individual channel and the system. This prevents ground loops and ensures that a surge or fault on one field instrument does not propagate to or affect the readings of the other seven channels.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting and Clearance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module dimensions are 32.8 mm in width and 130 mm in height. When installing in a CENTUM VP node unit, ensure that the module is fully seated into the backplane connector and the fixings are hand-tightened. Maintain sufficient cabinet airflow to keep the ambient temperature within the -20 to 70 deg C range, especially in high-density I\/O configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring for High Frequency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor pulse signals approaching the 10 kHz limit, use high-quality twisted, shielded pair cabling. The shield should be grounded at the system end only to mitigate electromagnetic interference. The maximum signal source resistance should be kept at 1 kOhm or less to ensure clear voltage swing (VH-VL) detection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTransmitter Power Supply:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module can select between 24 V DC and 12 V DC for transmitter power. Note the current limiter values: 30 mA for 24 V and 40 mA for 12 V. Exceeding these limits will trigger internal protection circuits and may result in intermittent signal loss.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundancy Planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf deploying in a dual-redundant configuration, ensure the shunt resistance is set to \"none\" on the standby side to maintain high impedance. The module automatically manages shunt activation during a failover event.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52695400317291,"sku":"AAP135-S50","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/yokogawa-aap135-s50-pulse-input-module-ypsujfm33jv_6d183b24-d4dd-4414-a45d-ad3da9d171f4.jpg?v=1766133703","url":"https:\/\/www.plcprotech.com\/fr\/products\/yokogawa-aap135-s50-pulse-input-module-centum-vp-8-channel","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}