{"product_id":"1769-sm2-allen-bradley-compact-i-o-dsi-modbus-communication-module","title":"1769-SM2 Allen-Bradley Compact I\/O DSI\/Modbus Communication Module","description":"\u003ch3\u003eTechnical Engineering Data\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-SM2\u003c\/span\u003e\u003c\/strong\u003e acts as a specialized bridge between Allen-Bradley controller platforms and variable frequency drive networks. It enables seamless integration of PowerFlex 4 and 7 class drives into CompactLogix or MicroLogix 1500 architectures via DSI or Modbus RTU protocols.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e \u003cspan style=\"color: #e67e22;\"\u003e\u003cstrong\u003eAllen-Bradley \/ Rockwell Automation\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e \u003cspan style=\"color: #e67e22;\"\u003e\u003cstrong\u003e1769-SM2\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupported Protocols:\u003c\/strong\u003e DSI (19200 bps) and Modbus RTU (300–38400 bps)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBackplane Power:\u003c\/strong\u003e 350 mA at 5V DC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMounting Options:\u003c\/strong\u003e DIN Rail or Panel Mount\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEnvironmental Range:\u003c\/strong\u003e -10°C to +50°C\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShock\/Vibration:\u003c\/strong\u003e 30g shock \/ 5g vibration (10–500 Hz)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaximum Drive Capacity:\u003c\/strong\u003e Up to 15 PowerFlex 4-class drives (3 channels, 5 drives per channel)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdvanced Diagnostics \u0026amp; System Integration\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOperational Modes:\u003c\/strong\u003e Supports both Single-drive and Multi-drive configuration topologies.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eController Versatility:\u003c\/strong\u003e Functions as local I\/O expansion for MicroLogix 1500 or remote I\/O for CompactLogix and 1769-ADN adapters.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFirmware Management:\u003c\/strong\u003e Utilizes ControlFLASH for efficient multi-drive updates via the controller backplane.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCabling Limits:\u003c\/strong\u003e Facilitates flexible deployments with up to 1,219 m (4,000 ft) for Modbus network wiring and 10 m (32.8 ft) for DSI drive links.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGlobal PLC Spare HUB Insight\u003c\/h3\u003e\n\u003cp\u003eEngineers at Global PLC Spare HUB identify the \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-SM2\u003c\/span\u003e\u003c\/strong\u003e as a mission-critical tool for motor control density.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSuitable Equipment:\u003c\/strong\u003e PowerFlex 4-Class and 7-Class frequency inverters, pump arrays, and industrial conveyor speed-control systems.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication Fit:\u003c\/strong\u003e Highly recommended for retrofitting legacy MicroLogix\/CompactLogix stations to monitor multiple VFDs through a single, streamlined communication slot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLogistics and Service\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGuarantee:\u003c\/strong\u003e Full 12-month quality warranty for all units.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWorldwide Shipping:\u003c\/strong\u003e Expedited logistics via FedEx, UPS, and DHL.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLead Time:\u003c\/strong\u003e Rapid order fulfillment; shipments dispatched within 24-48 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExpert Frequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the critical 'Power Supply Distance' limitation for this module?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cspan style=\"color: #e67e22;\"\u003e\u003cstrong\u003e1769-SM2\u003c\/strong\u003e\u003c\/span\u003e must be installed within 4 modules of your Compact I\/O power supply to ensure sufficient voltage stability on the backplane.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use standard RS485 cabling for the Modbus connection?\u003c\/strong\u003e\u003cbr\u003e\nYou should utilize a 2-conductor twisted-pair network cable compliant with industrial shielding standards to minimize data errors over long distances.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the module require external communication adapters for PowerFlex 7-Class drives?\u003c\/strong\u003e\u003cbr\u003e\nYes, you must utilize the 20-COMM-H or equivalent RS485-HVAC communication adapter to interface the 7-Class drive with this module.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow should I address signal interference in a multi-drive setup?\u003c\/strong\u003e\u003cbr\u003e\nMaintain separation between signal cabling and high-voltage motor power leads; keep DSI cables under the 10-meter maximum length to ensure high-speed transmission integrity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy would a firmware update fail during a ControlFLASH process?\u003c\/strong\u003e\u003cbr\u003e\nIf the update fails, verify that the module is not positioned beyond the 4-module power limit and that your backplane bus connection is secure.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45014018949302,"sku":"1769-SM2","price":181.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1769-SM2_ff134a9a-1bfa-466c-b89f-4d2744cddfd1.jpg?v=1780569737","url":"https:\/\/www.plcsparehub.com\/products\/1769-sm2-allen-bradley-compact-i-o-dsi-modbus-communication-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}