DigiGate-Profibus Introduction DigiGate Profibus is the ideal equipment for interconnecting a Profibus DP network with a Modbus RTU network. It works as a gateway, operating as a master station in the Modbus network and as a slave station in the Profibus network. Thus, according to its previous configuration, DigiGate will read the data of the other devices (slaves) of the Modbus network and send the read values to the Profibus master. In the same way, it will write at the output of the Modbus slaves according to the Profibus master requests, providing a complete control of the Modbus network devices through the Profibus network. The device is totally configurable through the application DigiConfig for Windows®, which comes with the product, making access and change of its parameters really easy. Features  Commands available for data reading: “01 Read Coil Status”, “02 Read Input - Status”, “03 Read Holding Register” and “04 Read Input Register”  Protocol: Profibus DP  Operates at the entire range of communication rates, from 9600 bps to 12  Commands available for data writing: “05 Force Single Coil”, “06 Preset Mbps  Addressing range: 0 to 125  Automatic detection of supported baud rate  Termination and polarization resistors included (activated by jumper)  Profibus connection: DB9 connector Modbus  Operates from 1200 bps to 115200 bps  Termination and polarization resistors included (activated by jumper)  Protection at the bus: ±60 Vdc, 15 kV ES Single Register”, “15 Force Multiple Coils” and “16 Preset Multiple Registers” General Operating environment: 0 to 50 °C, 30 to 80% of relative humidity, without condensation Mounting: DIN 35 mm rail Electrical insulation between the Profibus interface and the rest of the device: 1000 Vac Power supply: 10 a 35 Vdc. Internal protection against inverse polarity Frontal lit indicators for communication and status Principles of Operation The data interchange in the DigiGate is performed through an internal memory table of the device, which is shared between the Profibus side and the Modbus side. This data interchange mode is very simple, since the Profibus control system will only need reading the data from this table, which is continuously fed and updated through the reading operation performed by the Modbus. In the same way, the Profibus will write the data in this table so that the Modbus can forward the new values to the correct registers of the corresponding slaves. Profibus Master

Electrical Connections The configuration of the DigiGate Profibus is entirely performed by the DigiConfig for Windows® software. During the configuration process, the Modbus interface of the DigiGate will stop working as a master and start operating as a slave. On this condition, a computer equipped with a USB-RS485 is connected to the Modbus interface, and DigiConfig software will work as a Modbus network master in order to perform the DigiGate configuration. For setting the DigiGate into configuration mode, press the CFG key and start the automatic search in the DigiConfig software. The DigiConfig configuration...