{"product_id":"allen-bradley-1769-sm2-dsi-modbus-module","title":"Allen-Bradley 1769-SM2 DSI Modbus Module","description":"\u003ch2 style=\"color: #003366; font-weight: bold;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"line-height: 1.6; color: #333333; margin-top: 15px;\"\u003eThe Allen-Bradley \u003cstrong\u003e1769-SM2\u003c\/strong\u003e is a versatile Compact I\/O communication module that enables seamless integration between CompactLogix or MicroLogix 1500 controllers and PowerFlex drives. By supporting both DSI and Modbus RTU protocols, the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e provides a cost-effective solution for distributed drive control. \u003c\/p\u003e\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 30px;\"\u003eTechnical Configuration\u003c\/h2\u003e\n\u003ch3 style=\"color: #0055aa; margin-top: 20px;\"\u003eDual-Protocol Versatility\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.6; color: #333333;\"\u003eThe \u003cstrong\u003e1769-SM2\u003c\/strong\u003e excels in multi-protocol environments. It supports a fixed 19.2 kbps DSI rate for Allen-Bradley drives and adjustable Modbus RTU speeds ranging from 300 to 38.4 kbps. This flexibility allows engineers to interface with a wide range of peripheral devices and legacy systems using a single hardware footprint.\u003c\/p\u003e\n\u003ch3 style=\"color: #0055aa; margin-top: 20px;\"\u003eSystem Integration\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.6; color: #333333;\"\u003eDesigned for the CompactLogix platform, the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e draws power directly from the backplane (350mA @ 5V DC). Its small form factor supports DIN rail or panel mounting, making it ideal for space-constrained enclosures where efficient hardware density is critical for system performance.\u003c\/p\u003e\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 30px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px; border: 1px solid #dddddd;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"border: 1px solid #dddddd; padding: 12px; text-align: left; color: #003366;\"\u003eAttribute\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #dddddd; padding: 12px; text-align: left; color: #003366;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003e\u003cstrong\u003e1769-SM2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eProtocols\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003eDSI \u0026amp; Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eController Compatibility\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003eCompactLogix, MicroLogix 1500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eDrive Support\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003ePowerFlex 4-Class, PowerFlex 7-Class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003e350mA @ 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eOperating Temp\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003e-10°C to 50°C (14°F to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eVibration\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003e5g @ 10-500Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px; font-weight: bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 10px;\"\u003e0.28 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 30px;\"\u003eInstallation \u0026amp; Maintenance Guide\u003c\/h2\u003e\n\u003cul style=\"line-height: 1.6; color: #333333; margin-top: 15px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eDistance Limits:\u003c\/strong\u003e Maintain a maximum cable length of 10 meters when connecting the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e to PowerFlex drives to ensure signal integrity.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eNetwork Expansion:\u003c\/strong\u003e For Modbus networks, the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e supports a maximum distance of 1219 meters (4000 feet).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003ePower Supply Distance:\u003c\/strong\u003e Do not install the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e module more than 4 slots away from the system power supply to prevent voltage drops.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Ensure the installation area is free from corrosive vapors and meets the vibration resistance specifications of 5g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 30px;\"\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cp style=\"line-height: 1.6; color: #333333;\"\u003eThe \u003cstrong\u003e1769-SM2\u003c\/strong\u003e eliminates the need for complex external gateways by providing native drive communication within the CompactLogix I\/O bank. This tight integration allows for better diagnostic visibility and faster commissioning of PowerFlex drive systems. Its ability to host Modbus RTU traffic makes the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e a powerful tool for hybrid systems requiring both proprietary and open-standard communication.\u003c\/p\u003e\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 30px;\"\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp style=\"line-height: 1.6; color: #333333; margin-top: 15px;\"\u003e\u003cstrong\u003eQ1: Can the 1769-SM2 control multiple drives simultaneously?\u003c\/strong\u003e\u003cbr\u003eA1: Yes, the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e features three channels that can independently interface with PowerFlex 4-Class or 7-Class drives depending on the configuration.\u003c\/p\u003e\n\u003cp style=\"line-height: 1.6; color: #333333; margin-top: 10px;\"\u003e\u003cstrong\u003eQ2: Does the 1769-SM2 require an external 24V power source?\u003c\/strong\u003e\u003cbr\u003eA2: No. The \u003cstrong\u003e1769-SM2\u003c\/strong\u003e is fully powered by the 1769 backplane via the 5V DC supply, drawing 0mA from the 24V DC bus.\u003c\/p\u003e\n\u003cp style=\"line-height: 1.6; color: #333333; margin-top: 10px;\"\u003e\u003cstrong\u003eQ3: Is the Modbus baud rate fixed like the DSI speed?\u003c\/strong\u003e\u003cbr\u003eA3: No. While DSI is fixed at 19.2 kbps, the Modbus RTU communication speed on the \u003cstrong\u003e1769-SM2\u003c\/strong\u003e is adjustable between 300 and 38,400 bps.\u003c\/p\u003e\n\u003ch3 style=\"margin-top: 30px;\"\u003eDownload Data Sheet\u003c\/h3\u003e\n\u003cp style=\"margin-top: 15px;\"\u003e\u003ca style=\"background-color: #003366; color: white; padding: 10px 20px; text-decoration: none; border-radius: 4px; display: inline-block; font-weight: bold;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1769_CompactLogix_Controllers_User_Manual.pdf?v=1752113701\" target=\"_blank\"\u003eAccess Detailed Product Specifications PDF\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050308436100,"sku":"1769-SM2","price":218.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1769-SM2-1.jpg?v=1776576657","url":"https:\/\/www.etowonauto.com\/az\/products\/allen-bradley-1769-sm2-dsi-modbus-module","provider":"Etowon Auto","version":"1.0","type":"link"}