Siemens MPB2-TP Multi-Protocol Communication Card

MPB2-TP is an expansion communication card exclusively developed by Siemens for XV400 series MICRO PANEL touch HMIs, upgraded based on MPB1-TP with extra Siemens MPI bus interface. It acts as a multi-protocol conversion bridge between HMI and various brand PLCs, realizing bidirectional data exchange for production parameter reading, equipment status monitoring and remote control command transmission. The card adopts isolated RS485 circuit design to filter industrial electromagnetic noise from inverters and motors.

This plug-in slot communication board must be installed or removed under power-off state to avoid hardware burnout. Its firmware stored in flash memory supports customizable communication drivers, widely stocked as aftermarket spare parts for aging Eaton XV400 touch screens with communication port shortage or serial interface damage in packaging, water treatment and machinery workshops.

Main Specifications

• Brand: Siemens; Model: MPB2-TP; Type: HMI Expansion Multi-Protocol Communication Card
• Host Device: Only compatible with Eaton XV400 MICRO PANEL touch screen series
• Onboard Interfaces: RS232/422/485 universal COM port, dedicated MPI bus port for Siemens S7 PLC
• Supported Protocols: Modbus RTU, MPI, DF1, TTY, supporting Mitsubishi, Omron, Rockwell, Siemens PLCs
• Transmission Distance: RS485 max 1200m @100kbps; MPI bus up to 1000m @20kbps
• Power Supply: Powered via XV400 backplane slot, low power consumption 1.2W
• Memory: Flash non-volatile storage for communication driver firmware, no battery required
• Operating Environment: -20℃ ~ +65℃, humidity 5%–95% RH non-condensing, CE EMC certified
• Installation: Internal slot plug-in structure, power-off hot replacement prohibited

Core Functions

• Expand multi-channel serial communication ports for XV400 HMI, connecting multiple brands of PLC controllers simultaneously without additional gateway equipment.
• Dedicated MPI interface realizes stable high-speed data connection with Siemens S7-300/S7-400 series PLCs, supporting real-time program monitoring and parameter modification on touch screen.
• Isolated signal circuit eliminates ground loop interference and high-frequency electromagnetic radiation, ensuring stable data transmission in mechanical processing and power distribution control cabinets.
• Compatible with dozens of mainstream PLC communication drivers, firmware upgradeable to match new automation equipment without replacing the whole HMI unit.
• Real-time two-way data transmission: upload equipment running data, alarm signals to HMI, download touch screen operation commands to PLC control logic.
• Standard slot electrical definition enables direct plug-and-play replacement, only matching communication protocol configuration needed during maintenance.

Application Scenarios

• Communication expansion spare replacement for Eaton XV400 touch screen control panels in packaging machinery, food filling and logistics palletizing lines.
• Multi-brand PLC connection communication card spare parts for water treatment stations, HVAC central control and small chemical batch production workshops.
• Maintenance backup inventory for metal cutting machine tools, textile printing equipment and low-voltage power distribution monitoring cabinets.
• Matching expansion board cooperating with XV400 HMI and Siemens S7, Rockwell, Mitsubishi PLC automation systems.
• Retrofit replacement components for aging XV400 HMIs with insufficient communication ports or serial channel communication failure faults.

• Global aftermarket spare stock for discrete manufacturing maintenance teams maintaining Eaton Micro Panel HMI automation hardware.