{"product_id":"b-r-x20dc1198-x20-digital-counter-module-ssi","title":"B\u0026R X20DC1198 X20 Digital Counter Module (SSI)","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20DC1198 (X20DC1198)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized high-speed interface module within the B\u0026amp;R X20 system, specifically designed to read SSI (Synchronous Serial Interface) absolute encoders. This module provides a high-precision digital gateway for positioning and motion control tasks, allowing for the direct integration of absolute encoders with 5 V signal levels. Engineered for performance-critical applications, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20DC1198\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a staple in high-end CNC machinery, robotic arms, and automated material handling systems where absolute position feedback is required immediately upon power-up without a homing sequence. Its integrated status diagnostics and low bus power overhead ensure high system availability and efficient operation in dense control architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe X20DC1198 is built to handle high-frequency serial data with robust synchronization features.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSSI Interface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports one absolute encoder with a 5 V differential signal level, ensuring compatibility with a wide range of industrial linear and rotary encoders.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Digital Inputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures 2 additional digital inputs that can be utilized for trigger functions, reference signals, or general-purpose hardware interrupts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReal-Time Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with an extensive LED array providing immediate visual feedback on I\/O functions per channel, module operating state, and general module health.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Processing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized for minimal jitter and low latency, ensuring the master controller receives position data in sync with the system clock for precise loop control.\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\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX20DC1198\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eB\u0026amp;R Industrial Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital Counter \/ SSI Interface\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEncoder Support\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1x SSI Absolute Encoder (5 V)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eB\u0026amp;R ID Code\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0x1BB0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption (Bus)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.01 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption (I\/O)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of using an SSI encoder with the X20DC1198?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSSI is a digital point-to-point interface that provides absolute position data. Unlike incremental encoders, the X20DC1198 can read the exact position of the machine immediately after a restart, eliminating the need for time-consuming homing cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module provide power to the 5 V encoder?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module interfaces with 5 V signals; however, the actual power supply for the encoder must be verified against the X20 system's power budget. Typically, an X20PD potential distribution module is used to provide the necessary 5 VDC to the field devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the two digital inputs typically used?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 2 digital inputs on the X20DC1198 are often used for \"Latch\" functions—capturing the current SSI position value instantaneously when a sensor (like a registration mark sensor) is triggered—or as standard limit switch inputs.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering Installation and Implementation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShielding for High-Speed Data:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSSI signals are susceptible to electromagnetic interference. Always use shielded, twisted-pair cabling for the encoder connection. The cable shield must be grounded at the X20 shield terminal to ensure a low-impedance path for high-frequency noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClock and Data Alignment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure that the SSI clock frequency is configured in Automation Studio to match the encoder's specifications and the cable length. Long cable runs may require a reduction in clock speed to compensate for signal propagation delays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Placement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo minimize interference, separate the encoder cables from high-power AC lines or motor cables. If using the X20DC1198 in a system with high-vibration, ensure the X20BM11 bus module is securely locked to the DIN rail.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostics Interpretation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eI\/O LED:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndicates the state of the digital inputs or SSI communication status.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Status LED:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA flashing red LED usually indicates a configuration mismatch or a loss of encoder signal (wire break detection).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"B\u0026R","offers":[{"title":"Default Title","offer_id":53086376034667,"sku":"X20DC1198","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/x20dc1198-aqn5wkvl0hl.png?v=1776138176","url":"https:\/\/www.plcprotech.com\/products\/b-r-x20dc1198-x20-digital-counter-module-ssi","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}