{"product_id":"prosoft-mvi56-dfcm-controllogix-df1-master-slave-communication-module","title":"ProSoft MVI56-DFCM ControlLogix DF1 Master\/Slave Communication Module","description":"\u003cp\u003eConfigured for multi-point serial protocol conversion in Rockwell Automation ControlLogix architectures, the \u003cstrong\u003eProSoft MVI56-DFCM\u003c\/strong\u003e (\u003cstrong\u003eMVI56-DFCM\u003c\/strong\u003e Network Interface Module) provides direct physical\/electrical execution. The module enables bi-directional data exchange between ControlLogix backplanes and legacy DF1-compliant field devices over dedicated serial links. Operating as an input\/output interface, it handles protocol formatting internally to offload serial communication overhead from the primary system controller.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eMVI56-DFCM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eProSoft Technology\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\u003e1.76 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C (-40 to 185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e800 mA @ 5.1 VDC; 3 mA @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Requirement\u003c\/td\u003e\n\u003ctd\u003e1 slot (Local or Remote ControlLogix Chassis)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Ports\u003c\/td\u003e\n\u003ctd\u003e2 RJ45 (RS-232 \/ RS-422 \/ RS-485 configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e110 baud to 115.2 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eDF1 Full-Duplex, DF1 Half-Duplex Master\/Slave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Database\u003c\/td\u003e\n\u003ctd\u003e5000 registers (16-bit user-configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommand Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 100 user-defined commands per port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Latency and Deterministic Network Isolation\u003c\/h3\u003e\n\u003cp\u003eThe MVI56-DFCM acts as an independent backplane module, transferring serial field data into its internal 5000-register database before executing deterministic backplane transfers to the ControlLogix processor. By isolating the serial polling routine from the controller execution cycle, the module prevents asynchronous serial delays from impacting main controller scan times. High-speed backplane bus communication velocity allows rapid memory map updates via block transfers, while software-configurable port baud rates (up to 115.2 kbps) maintain predictable throughput across complex DF1 Master\/Slave network topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the backplane current draw required by the MVI56-DFCM module during operation?\u003c\/p\u003e\n\u003cp\u003eA: The module draws 800 mA at 5.1 VDC and 3 mA at 24 VDC from the ControlLogix backplane power supply.\u003c\/p\u003e\n\u003cp\u003eQ: Can the serial ports on the MVI56-DFCM be independently set to different electrical standards?\u003c\/p\u003e\n\u003cp\u003eA: Yes, each of the two RJ45 serial ports is individually software-configurable to operate under RS-232, RS-422, or RS-485 physical layer specifications.\u003c\/p\u003e\n\u003cp\u003eQ: Is ladder logic required to manage the DF1 serial communication protocol engine?\u003c\/p\u003e\n\u003cp\u003eA: No, the module handles full-duplex and half-duplex DF1 protocol parsing internally via its command list database, requiring only basic I\/O block transfers in the controller logic.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower off the target ControlLogix chassis before inserting or removing the MVI56-DFCM module to prevent backplane edge-connector damage.\u003c\/li\u003e\n\u003cli\u003eAlign the module with the chassis slot guides and slide it firmly into place until the top and bottom retention levers snap securely.\u003c\/li\u003e\n\u003cli\u003eUtilize shielded twisted-pair cables for all RS-422 and RS-485 serial runs to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eEnsure single-point grounding of the cable shield at the panel earth bar. Do not connect the shield at both ends to avoid ground loop currents.\u003c\/li\u003e\n\u003cli\u003eVerify signal line termination resistors (120 ohm) are applied at the physical end nodes of RS-485 network segments.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"AMPHENOL","offers":[{"title":"Default Title","offer_id":43996924936282,"sku":"MVI56-DFCM","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/MVI56-DFCM.jpg?v=1788343546","url":"https:\/\/www.plcmasters.com\/products\/prosoft-mvi56-dfcm-controllogix-df1-master-slave-communication-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}