Manufacturer: Allen-Bradley / Rockwell AutomationProSoft Technology PLX31-EIP-MBS PLX30 EtherNet/IP to Modbus Serial Gateway with One Serial Communication Port and One Ethernet Port for remote configuration and diagnostics, Serial RS-232, 485 and 422, SD Card Slot for storing configuration files (SD Card is not included), DIN-rail mounted, allows high-speed bi-directional data transfers between EtherNet/IP PACs or devices and Modbus-enabled PACs or devices