{"product_id":"allen-bradley-1769-sm2-dsi-modbus-industrial-automation-module","title":"Allen-Bradley 1769-SM2 DSI\/Modbus Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1769-SM2 is a Compact I\/O communication module designed to bridge CompactLogix and MicroLogix 1500 controllers with variable frequency drives over Drive Serial Interface (DSI) or MODBUS RTU networks. This industrial automation module enables seamless integration with PowerFlex 4-class and PowerFlex 7-class drives via the 20-COMM-H RS485 adapter, making it an essential component for modern drive control systems.\u003c\/p\u003e\u003cp\u003eWith a single-slot width and support for both DIN rail and panel mounting, the 1769-SM2 fits easily into existing panels. It draws only 350 mA at 5V DC from the backplane, ensuring minimal power consumption while maintaining reliable communication.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe 1769-SM2 delivers robust performance across its communication protocols. Key specifications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Protocols:\u003c\/strong\u003e DSI and MODBUS RTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSI Data Transfer Speed:\u003c\/strong\u003e 19200 bps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMODBUS Transfer Speeds:\u003c\/strong\u003e 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400 bps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Draw:\u003c\/strong\u003e 350 mA @ 5V DC; 0 mA @ 24V DC (supplied by Compact I\/O power supply)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10…50 °C (14…122 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40…85 °C (-40…185 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 5g, 10 to 500 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Shock:\u003c\/strong\u003e 30g, 11 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Distance Rating:\u003c\/strong\u003e 8 modules\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Type:\u003c\/strong\u003e Copper-90°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid Wire Size:\u003c\/strong\u003e 22–14 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStranded Wire Size:\u003c\/strong\u003e 22–16 AWG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese specifications ensure the 1769-SM2 operates reliably in demanding industrial environments, whether installed in a control cabinet or on a machine.\u003c\/p\u003e\u003ch2\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\u003cp\u003eThe 1769-SM2 excels in applications requiring multi-drive control and flexible communication. Common scenarios include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConveyor Systems:\u003c\/strong\u003e Synchronize multiple PowerFlex 4-class drives over DSI, with each channel supporting up to five drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump and Fan Control:\u003c\/strong\u003e Use MODBUS RTU to integrate with existing SCADA systems, allowing remote monitoring and control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Machinery:\u003c\/strong\u003e Achieve precise speed control and quick changeovers by connecting CompactLogix controllers to PowerFlex 7-class drives via the 20-COMM-H adapter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe module's ability to operate in single-drive or multi-drive mode provides flexibility, and its 19200 bps DSI speed ensures fast data exchange for real-time control.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the 1769-SM2 on a DIN rail or panel using the integrated clips. Connect it to the Compact I\/O backplane, ensuring it is within the power supply distance rating of 8 modules. For DSI communication, use a 2-conductor twisted-pair network wiring system with a maximum cable distance of 1219 m (4000 ft). For PowerFlex 4-class drives, keep the cable distance under 10 m (32.8 ft) to maintain signal integrity.\u003c\/p\u003e\u003cp\u003eConfigure the module for either single or multi-drive operation. For multi-drive setups, use ControlFLASH via the CompactLogix backplane to update firmware. Verify that the module is not installed in areas with volatile or corrosive gases, vapors, or dust.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRoutine maintenance focuses on ensuring clean power and proper grounding. Inspect wiring connections periodically to prevent loose terminals. The 1769-SM2 operates reliably within -10…50 °C, so ensure adequate ventilation in enclosures. With no moving parts, the module offers long service life, reducing downtime and maintenance costs.\u003c\/p\u003e\u003cp\u003eGiven its shock and vibration ratings (30g, 11 ms and 5g, 10-500 Hz), the module withstands harsh industrial conditions, making it a dependable choice for continuous operation.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1769-SM2 is compatible with CompactLogix and MicroLogix 1500 controllers, and can also be used with remote 1769-based adapters like the 1769-ADN. It supports both DSI and MODBUS RTU protocols, enabling integration with a wide range of drives and PLCs. The module is part of the CompactLogix product line and is available in Series A and B.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eWhen selecting the 1769-SM2, confirm your controller model (CompactLogix or MicroLogix 1500) and the drive types you plan to connect. For PowerFlex 7-class drives, ensure you have the 20-COMM-H RS485 communication adapter. Verify your network wiring meets the specified distances and use copper wire rated for 90°C.\u003c\/p\u003e\u003cp\u003ePLC Source PRO offers genuine Allen-Bradley 1769-SM2 modules with fast shipping and competitive pricing. Ensure you order the correct part number to guarantee compatibility with your existing system.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44438742237283,"sku":"1769-SM2","price":276.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1769-ADN_04f7a28a-7e7f-4f05-9d1f-86168eb7e12d.jpg?v=1785847441","url":"https:\/\/www.plcsourcepro.com\/he\/products\/allen-bradley-1769-sm2-dsi-modbus-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}