{"product_id":"alr111-yokogawa-serial-communication-module-new-original-stock","title":"ALR111 YOKOGAWA Serial Communication Module | New \u0026 Original Stock","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA ALR111\u003c\/strong\u003e is a high-performance serial communication module designed for point-to-point data exchange within CENTUM VP control systems. It acts as a dedicated interface for integrating third-party serial devices, such as analyzers, programmable logic controllers (PLCs), and operator interfaces, directly into the DCS network.\u003c\/p\u003e\n\u003ch3\u003eKey Hardware \u0026amp; Connectivity Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eALR111\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003eRS-232C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Method\u003c\/td\u003e\n\u003ctd\u003ePoint-to-point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e1200 to 38400 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Mode\u003c\/td\u003e\n\u003ctd\u003eHalf-duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSynchronization\u003c\/td\u003e\n\u003ctd\u003eStart-stop synchronization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCommunication and Transmission Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe ALR111 provides reliable serial communication for devices located within a 15-meter range. It supports flexible data formatting, including selectable character lengths (7\/8 bits), stop bits (1\/2 bits), and parity (none\/even\/odd), allowing for broad compatibility with diverse industrial communication protocols. The module is specifically optimized for efficient data polling and event-driven communication with a strictly defined lag time of 1 ms after data transmission to maintain loop timing integrity.\u003c\/p\u003e\n\u003ch3\u003eIntegration and Installation\u003c\/h3\u003e\n\u003cp\u003eThe ALR111 is designed for modular installation, compatible with a variety of Yokogawa field units, including the ANB10, ANB11, ANR10, AFF50, and AFV series (AFV10\/30\/40). To maintain signal integrity and meet electromagnetic compatibility standards, Yokogawa recommends specific cabling assemblies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Wiring:\u003c\/strong\u003e Compatible with AKB131, AKB132, AKB133, and AKB134 cable series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielded Requirements:\u003c\/strong\u003e For environments with high electrical noise, 3-pair shielded cables (AKB161 or AKB162) should be utilized to protect signal fidelity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the ALR111 differ from the ALR121?\u003c\/p\u003e\n\u003cp\u003eA: While both are serial communication modules, the ALR111 is strictly limited to RS-232C point-to-point communication. The ALR121 provides additional support for RS-422\/RS-485 interfaces, allowing for both point-to-point and multipoint communication over much longer distances (up to 1200 meters).\u003c\/p\u003e\n\u003cp\u003eQ: Is the ALR111 capable of full-duplex communication?\u003c\/p\u003e\n\u003cp\u003eA: No. The ALR111 module is designed for half-duplex communication, meaning data can be transmitted and received, but not simultaneously on the same channel.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the control station power is de-energized before mounting the ALR111 into the target unit (e.g., AFV40 or ANB11).\u003c\/li\u003e\n\u003cli\u003eUse the appropriate AKB series cable for the specific terminal unit to ensure proper impedance matching and connector seating.\u003c\/li\u003e\n\u003cli\u003eTerminate the cable shield at the designated cabinet grounding rail to prevent common-mode noise from affecting serial data packets.\u003c\/li\u003e\n\u003cli\u003eVerify the communication settings (baud rate, parity, stop bits) on the external device exactly match the configuration assigned in the CENTUM VP software.\u003c\/li\u003e\n\u003cli\u003eOnce powered, monitor the module status via the engineering station to confirm the link status and clear any initial framing errors.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49199721578748,"sku":"ALR111","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/ALR1111.jpg?v=1781487121","url":"https:\/\/www.electronicplc.com\/ar\/products\/alr111-yokogawa-serial-communication-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}