{"product_id":"prosoft-3100-mcm-modbus-communication-module-for-plc-5","title":"ProSoft 3100-MCM Modbus Communication Module for PLC-5","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3100-MCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a Modbus Master\/Slave communication module developed by ProSoft Technology for Allen-Bradley PLC-5 processors. It enables Rockwell Automation PLC systems to communicate directly with Modbus-compatible devices, including drives, analyzers, meters, and third-party control equipment.\u003c\/p\u003e\n\u003cp\u003eDesigned for legacy industrial environments, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3100-MCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremains widely used in existing PLC-5 installations where Modbus RTU or ASCII connectivity is required without replacing the core control system.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eCommunication Functionality\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3100-MCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates as either a Modbus Master or Modbus Slave, allowing flexible network topologies. It supports both Modbus RTU and Modbus ASCII protocols, making it suitable for integration with a wide range of legacy and third-party devices.\u003c\/p\u003e\n\u003cp\u003eIn real-world applications, this module is commonly used to bridge Allen-Bradley PLC-5 controllers with Modbus field devices in process automation and utility systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHardware Interface and Ports\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module features dual serial communication ports with DB-25 female connectors. These ports support RS-232, RS-422, and RS-485 electrical standards through configurable wiring, enabling point-to-point or multi-drop Modbus networks.\u003c\/p\u003e\n\u003cp\u003eThis flexibility allows engineers to adapt the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3100-MCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto different plant layouts without additional protocol converters.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Integration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3100-MCM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einstalls directly into a PLC-5 chassis slot and draws power from the PLC backplane. Configuration is performed through a combination of DIP switches and ProSoft configuration tools, offering precise control over baud rate, parity, node addressing, and protocol behavior.\u003c\/p\u003e\n\u003cp\u003eFrom maintenance experience, once properly configured, the module provides stable long-term communication in continuous operation environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eModel:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3100-MCM\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: ProSoft Technology\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible controllers: Allen-Bradley PLC-5\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModule type: Modbus communication interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupported protocols: Modbus RTU, Modbus ASCII\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperating modes: Master or Slave\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommunication ports: 2 × DB-25 female\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical standards: RS-232, RS-422, RS-485\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBaud rate range: 300 to 19.2 kbps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eData format: 8 data bits, selectable parity, 1 stop bit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum nodes: Up to 32 nodes per RS-485 segment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDiagnostics: LED indicators for module and communication status\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower supply: 5 V DC from PLC backplane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperating temperature: 0 °C to +60 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStorage temperature: –40 °C to +85 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHumidity: 5–95% non-condensing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLifecycle status: Discontinued \/ legacy product\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43963980841059,"sku":"3100-MCM","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/184._f4d881a7-a1e3-4db6-8b83-2dd1174a9b18.jpg?v=1769130454","url":"https:\/\/www.autocontrolglobal.com\/products\/prosoft-3100-mcm-modbus-communication-module-for-plc-5","provider":"AutoControl Global","version":"1.0","type":"link"}