{"product_id":"mvi69-mcm-prosoft-compactlogix-series-datasheet-technical-manual","title":"MVI69-MCM ProSoft CompactLogix Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eProSoft MVI69-MCM CompactLogix Modbus Communication Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eProSoft MVI69-MCM\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMVI69-MCM\u003c\/strong\u003e Modbus Master\/Slave Network Interface Module, operates as a dedicated hardware component for multi-port serial data exchange within Rockwell Automation CompactLogix platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\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\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMVI69-MCM (Spare Model: MVI69MCM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProSoft Technology (Belden ProSoft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.15 kg (0.35 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 cm x 8.7 cm x 13.2 cm (Standard 1769 Single-slot Module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard industrial rating (contact manufacturer for exact limits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBackplane powered, 800 mA max @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSlot Occupancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation CompactLogix (1769 backplane architecture)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Transfer Mechanism\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSynchronized ladder logic data blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBaud Rate Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110 baud to 115.2 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNode Address Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 247 per port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTariff Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProtocol Conversion Latencies \u0026amp; Serial Networking\u003c\/h3\u003e\n\u003cp\u003eThe module bridges the local 1769 backplane to standard Modbus networks, running up to two independent serial ports concurrently. Each interface is individually configurable to execute as either a Modbus Master or Modbus Slave using RTU or ASCII transmission formats.\u003c\/p\u003e\n\u003cp\u003eData transfers between the module memory registers and the CompactLogix processor are managed through small block transfers embedded in the asynchronous ladder logic scanning cycle. This internal arbitration system governs data mapping directly to user-defined arrays, ensuring that serial protocol conversion latencies do not introduce jitter into the time-deterministic operations of the main PLC backplane.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the MVI69-MCM module be removed or inserted into the 1769 chassis while backplane power is active?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA: No.\u003c\/strong\u003e Unlike larger 1756 architectures, the 1769 CompactLogix backplane system does not support Remove and Insert Under Power (RIUP) actions. Removing the module while the system is energized will trigger a fatal backplane bus fault on the controller and risk permanent electrical damage to the interface circuitry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How is the maximum current consumption bounded under full dual-port serial load?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA: The maximum internal power draw\u003c\/strong\u003e from the 1769 backplane is strictly limited to 800 mA at 5 VDC. External serial line loads, termination resistors, or transient voltage suppression states across both active lines are factored into this threshold, requiring correct sizing of the 1769 power supply budget.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How are network node configurations maintained if the module encounters a total power loss scenario?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA: All protocol properties\u003c\/strong\u003e, mapping schemes, and port configuration matrices are permanently written to non-volatile onboard flash memory. Upon restoration of the 5 VDC backplane supply, the gateway initializes automatically from the stored profile without requiring a configuration download from the processor.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Attachment and Bus Interlocking:\u003c\/strong\u003e Power down the CompactLogix system prior to installation. Slide the module onto the standard 35 mm DIN-rail alongside adjacent 1769 components, ensuring the integrated tongue-and-groove guides align smoothly. Close the bus levers to firmly lock the backplane connectors together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding and Grounding Infrastructure:\u003c\/strong\u003e Connect all serial communication networks using high-quality twisted-pair cabling. Ground the cable drain wire at a single point near the enclosure ground terminal block to suppress high-frequency electromagnetic field interference across the asynchronous serial paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS-485 Segment Termination:\u003c\/strong\u003e For networks operating at long physical distances or high baud rates up to 115.2 kbps, ensure a matching 120-ohm end-of-line resistor is attached across the balanced Tx\/Rx lines at the terminal limits of the physical segment to prevent signal wave reflection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROSOFT","offers":[{"title":"Default Title","offer_id":43474910347354,"sku":"MVI69-MCM","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/9._45566b0e-633c-4655-96a5-90b76bd6e706.jpg?v=1781054377","url":"https:\/\/www.spareoil.com\/products\/mvi69-mcm-prosoft-compactlogix-series-datasheet-technical-manual","provider":"SpareOil Automation","version":"1.0","type":"link"}