{"product_id":"allen-bradley-4601-rio-mcm-remote-i-o-modbus-communication-module","title":"Allen-Bradley 4601-RIO-MCM Remote I\/O Modbus Communication Module","description":"\u003cp\u003eConfigured for Remote I\/O data exchange and Modbus master communication in industrial control networks, the \u003cstrong\u003eAllen-Bradley 4601-RIO-MCM\u003c\/strong\u003e (\u003cstrong\u003e4601-RIO-MCM\u003c\/strong\u003e Remote I\/O Modbus Communication Module) provides direct physical and electrical execution between PLC systems and serial field devices.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e4601-RIO-MCM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.24 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e18.36 VDC, 500 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRemote I\/O to Modbus Master Communication Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Protocol\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley Remote I\/O (RIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Protocol\u003c\/td\u003e\n\u003ctd\u003eModbus RTU \/ Modbus ASCII Master\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eRS-232 \/ RS-422 \/ RS-485 selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModbus Device Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 32 Modbus slave devices per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModbus Baud Rate\u003c\/td\u003e\n\u003ctd\u003e300 bps to 38.4 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRIO Communication Rate\u003c\/td\u003e\n\u003ctd\u003e57.6k, 115.2k, 230.4k bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDIN Rail \/ Chassis Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Indicators\u003c\/td\u003e\n\u003ctd\u003ePower, Module Status, RIO Network Activity, Serial Rx\/Tx Activity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and Industrial Communication Integration\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 4601-RIO-MCM operates as a protocol conversion interface between Remote I\/O networks and Modbus serial devices. The module processes serial communication frames through RS-232, RS-422, or RS-485 interfaces while exchanging mapped data with Allen-Bradley PLC architectures.\u003c\/p\u003e\n\u003cp\u003eThe module supports deterministic Remote I\/O communication rates and Modbus master polling functions for connected field devices. Firmware flash compatibility should be verified before replacement installation to maintain communication configuration consistency.\u003c\/p\u003e\n\u003cp\u003eI\/O data mapping must be configured according to PLC memory allocation requirements and connected Modbus register definitions. Shielded communication wiring is required to reduce electromagnetic interference during serial data transmission.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 4601-RIO-MCM support Modbus slave operation?\u003c\/p\u003e\n\u003cp\u003eA: The provided specifications define Modbus RTU and Modbus ASCII operation in Master Mode. Slave functionality is not specified.\u003c\/p\u003e\n\u003cp\u003eQ: What serial interfaces are available for field device connection?\u003c\/p\u003e\n\u003cp\u003eA: The module supports selectable RS-232, RS-422, and RS-485 serial communication interfaces.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module communicate with multiple Modbus devices?\u003c\/p\u003e\n\u003cp\u003eA: The module supports communication with up to 32 Modbus slave devices per channel according to the provided technical data.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the module on a compatible DIN rail or chassis mounting location with sufficient clearance for wiring access and status indicator visibility.\u003c\/p\u003e\n\u003cp\u003eConnect RS-485 wiring using proper polarity and maintain separation between communication cables and high-voltage power conductors. Apply cable shielding and terminate the shield according to site grounding standards.\u003c\/p\u003e\n\u003cp\u003eVerify the Remote I\/O network addressing, baud rate settings, and Modbus register mapping before commissioning. Confirm power supply wiring polarity and measure operating voltage before connecting communication devices.\u003c\/p\u003e\n\u003cp\u003eAvoid routing serial communication cables parallel to motor power lines, variable frequency drive outputs, or high-current switching circuits to reduce electrical noise interference.\u003c\/p\u003e","brand":"AMPHENOL","offers":[{"title":"Default Title","offer_id":43983937568858,"sku":"4601-RIO-MCM","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/4601-RIO-MCM2.jpg?v=1788252901","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-4601-rio-mcm-remote-i-o-modbus-communication-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}