Eaton MPB2-TP Complete Technical Documentation
1. Product Positioning
The Eaton XV400 MICRO PANEL dedicated expansion communication card is specifically designed for the XV400 series human-machine interface and is used for serial communication between HMI and third-party PLCs. It is an upgraded version of MPB1-TP and additionally natively supports the Siemens S7 MPI protocol. Eaton
Model distinction: MPB1-TP / MPB2-TP
MPB1-TP: Only general serial ports (Modbus, Mitsubishi, Omron, etc.), without MPI
MPB2-TP: Based on all protocols of MPB1, add Siemens MPI interface, connect to S7-300/400 old model PLC
Hardware interface (board-mounted dual serial ports)
General serial port channels (RS232/RS422/RS485 adaptive)
Supported protocols: Modbus RTU, Mitsubishi FX/A, Omron CP1H/C200H, DF1, TTY
Electrical: DB9 terminals, factory default RS485
Communication distance: RS485 1200m@100kbps; RS232 15m@19200bps
Specialized MPI channel (unique to MPB2-TP)
Designed specifically for the Siemens SIMATIC S7 MPI bus and RS485 physical layer
Baud rate: 19.2k / 187.5k standard MPI rate
Can be directly connected to S7-300, S7-400, ET200S MPI ports without DP adapter
Electrical Specifications
Power supply: Draw power from the XV400 touch screen backplane slot, no need for external 24V
Power consumption: Approximately 5W
Firmware storage: On-board Flash, retains drive/communication parameters when power is lost
Installation: Internal expansion slot of XV400 HMI, must be powered off for insertion and removal, no hot plugging allowed by Eaton
Protection: IP20 (for use in cabinet)
Operating temperature: -20℃ ~ +60℃
Size: 110 × 60 × 25 mm
List of Supported PLC Brands
1) General serial port channel (MPB1/MPB2 universal)
Modbus RTU: HuaChuan, Xijie, Delta, Watlow temperature controllers, various servo
Mitsubishi: FX, A series
Omron: C, H, K series
AB DF1, GE Fanuc serial protocol
2) MPI-exclusive channel (only MPB2-TP)
Siemens S7-300 / S7-400, S7-200 (with MPI programming port)
Core Functions
Single card dual protocol parallel communication: One MPI connects to Siemens PLC, the other Modbus connects to temperature control / servo
Communication status LED indicator, quick diagnosis of disconnection, bus faults
Terminal resistor onboard dip switch switching (RS485/MPI bus head-end tail-end terminal matching)
Isolated serial port circuit, resistant to industrial frequency inverters, servo interference
Companion software: Eaton PanelBuilder configuration communication driver, directly import GSD / driver files
Typical Application Scenarios
Old production line renovation: XV400 touch screen connects to S7-300/400 MPI system
Multi-device mixed control: One MPI connects to Siemens PLC, one Modbus connects to temperature control, servo instruments
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