Modbus Organization

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Type:  Network Gateway
Description:  The KD485 is a multi-purpose isolated RS232/422/485/20mA interface converter with intelligent data processing options. Three standard product versions cover most industrial interface and protocol conversion applications.
Connectivity:  Modbus
Features:  The KD485-ADE can act as an "addressable adapter" for each RS232 device. The KD485-PROG can be programmed - in ANSI C - to convert virtually any industrial automation protocol into any other. A Modbus RTU comms library is available for rapid Modbus RTU SLAVE protocol converter development, enabling a non-Modbus device to appear as a Modbus RTU slave device.
Specifications:  DIN-rail enclosure with removable screw terminals; fits 35mm symmetric rails; 29mm width on DIN rail; DC power input in the range +7V to +35V; uses a high efficiency switching power supply; Two serial ports: port 1 and port 2, isolated from each other and from the power supply ; Port 1 is RS232, port 2 is RS422/485 as standard; Controlled slew rate drivers on RS422/485 ports - no terminators needed for cables shorter than 300m; Internal pull-up and pull-down resistors on RS422/485 ports ensure that RS485 bus floats to a valid state when not driven.