{"product_id":"prosoft-plx31-mbtcp-mbs4-modbus-tcp-ip-to-modbus-serial-4-port-gateway","title":"ProSoft PLX31-MBTCP-MBS4 Modbus TCP\/IP to Modbus Serial 4 Port Gateway","description":"\u003cp\u003eThe \u003cstrong\u003eProSoft PLX31-MBTCP-MBS4\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePLX31-MBTCP-MBS4\u003c\/strong\u003e Modbus TCP\/IP to Modbus Serial 4 Port Gateway, operates as a dedicated hardware component for bidirectional protocol conversion and signal bridging within Modbus TCP\/IP networks and RS-232\/RS-422\/RS-485 serial field sub-networks.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel Code Segment\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eHardware\/Protocol Definition\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform Series\u003c\/td\u003e\n\u003ctd\u003ePLX31\u003c\/td\u003e\n\u003ctd\u003eCompact Standalone Industrial Standalone Gateway Platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Network\u003c\/td\u003e\n\u003ctd\u003eMBTCP\u003c\/td\u003e\n\u003ctd\u003eModbus TCP\/IP Client\/Server Ethernet Protocol Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Network\u003c\/td\u003e\n\u003ctd\u003eMBS4\u003c\/td\u003e\n\u003ctd\u003eModbus Serial (RS-232\/422\/485) Master\/Slave Interface (4 Channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003ePLX31-MBTCP-MBS4\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.46 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e13.67 x 5.05 x 11.13 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to 70 deg C (-13 to 158 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 80 deg C (-40 to 176 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (10 to 36 VDC range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC @ 300 mA nominal, 10 to 36 VDC @ 610 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Port\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbit half-duplex, RJ45 connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Isolation\u003c\/td\u003e\n\u003ctd\u003e1500 Vrms at 50 to 60 Hz for 60 seconds (IEC 60950: 1991)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Ports\u003c\/td\u003e\n\u003ctd\u003e4 isolated serial channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Isolation\u003c\/td\u003e\n\u003ctd\u003e2500 Vrms signal isolation per UL 1577 (SiliconLabs Si844x RF technology)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Ratings\u003c\/td\u003e\n\u003ctd\u003eIEC 60068-2-27; 15G @ 11ms (Operational), 30G @ 18ms (Non-Operational)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Ratings\u003c\/td\u003e\n\u003ctd\u003eIEC 60068-2-6; 5G @ 10 to 150 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Diagnostic Indicators\u003c\/td\u003e\n\u003ctd\u003eCFG, ERR, PWR, FLT, NS, MS, Link\/Act, Serial RX\/TX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Network Isolation \u0026amp; Protocol Conversion Latencies\u003c\/h3\u003e\n\u003cp\u003eThe PLX31-MBTCP-MBS4 incorporates high-speed RF-based digital galvantic isolation circuits across all four serial ports, utilizing SiliconLabs Si844x isolation components to achieve 2500 Vrms port-to-port and channel-to-ground dielectric protection. This isolation architecture prevents ground loop currents and transient voltage spikes from propagating between field-mounted Modbus serial devices and the upstream Modbus TCP\/IP Ethernet backbone. Protocol conversion latencies are minimized through an internal optimized memory map, enabling high-throughput data transfer between Ethernet buffers and serial UART transceivers without degrading deterministic poll cycles or causing packet collisions during multi-master polling operations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the gateway handle high-volume broadcast traffic on the Ethernet interface?\u003c\/p\u003e\n\u003cp\u003eA: The physical Ethernet controller implements hardware-level Broadcast Storm Resiliency. It restricts incoming Address Resolution Protocol (ARP) frame processing to a maximum rate of 5000 frames-per-second for durations up to 5 minutes, ensuring internal CPU resources remain dedicated to protocol execution during network flooding events.\u003c\/p\u003e\n\u003cp\u003eQ: What physical isolation mechanism is deployed on the serial communication channels?\u003c\/p\u003e\n\u003cp\u003eA: Each of the four serial ports utilizes SiliconLabs Si844x series digital isolators based on RF (Radio Frequency) modulation technology. This yields a 2500 Vrms signal isolation rating per UL 1577 between individual serial channels and internal logic circuits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail Mounting \u0026amp; Enclosure Clearance:\u003c\/strong\u003e Secure the module on a standard 35 mm DIN rail in an vertical position inside an IP54 or higher industrial enclosure. Maintain a minimum top and bottom thermal clearance of 50 mm to facilitate natural convection cooling across the temperature operating range of -25 to 70 deg C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding \u0026amp; Shielding Execution:\u003c\/strong\u003e Connect the designated GND terminal on the power connector directly to the nearest low-impedance protective earth (PE) busbar using a short 14 AWG conductor. Connect serial communications cable shields strictly at one ground point to avoid circulating ground loop currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply \u0026amp; Wiring Limits:\u003c\/strong\u003e Wire the primary 24 VDC supply using copper conductors rated for at least 85 deg C. Ensure the power source output capacity accommodates the maximum inrush and steady-state current draw of 610 mA at the lower 10 VDC input threshold.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AMPHENOL","offers":[{"title":"Default Title","offer_id":44006362153050,"sku":"PLX31-MBTCP-MBS4","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/PLX31-MBTCP-MBS42.jpg?v=1788429761","url":"https:\/\/www.plcmasters.com\/products\/prosoft-plx31-mbtcp-mbs4-modbus-tcp-ip-to-modbus-serial-4-port-gateway","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}