exmexCONTROL YOUR LIVING SPACEBidirectional gateway for the integration of serial Modbus and IP networks Code: EK-BU1-485-TCP The Ekinex EK-BU1-485-TCP interface is a modular device designed to enable bi-directional communication between equipment equipped with an RS-485 Modbus port and the IP data network. Thanks to its versatility, the gateway allows serial Modbus devices to be easily integrated into Ethernet network infrastructures, ensuring a reliable and stable connection. • 1x RS-485 serial port for connecting Modbus devices; • 1x RJ45 connector for interfacing with the IP data network. The interface is designed for 35 mm DIN-rail mounting, suitable for switchboards or distribution cabinets. Power can be supplied in two modes: via PoE (Power over Ethernet) directly from the LAN cable, or via an auxiliary DC power supply (6-36Vdc). The EK-BU1-485-TCP gateway allows bidirectional conversion of the Modbus protocol between an RS-485 serial line and an Ethernet/IP network. Designed as a universal device, it can operate in conjunction with any equipment playing the role of Modbus master, providing maximum flexibility for integration into automation and supervision systems. Within Delego, the gateway allows the expansion of the number of RS-485 serial lines managed by the system. The Delego Server has a native RS-485 port for direct connection of Modbus devices; if it is necessary to communicate with devices on more than one serial line, one or more EK-BU1-485-TCP gateways can be used, thus expanding the capabilities of the system in a simple and scalable way. Main features • Plastic housing • Design for mounting on 35 mm profile rail (according to EN 60715) • IP20 degree of protection (according to EN 60529) Technical Data Power supply • Isolation between power supply and signal Environmental conditions • Relative humidity: < 95% non-condensing Communication interfaces • 1 x RJ45 PoE port, supports IEEE 802.3af standard • Parity Bit: None, odd parity, even parity, mark, space • Data Bits: 5 ~ 9 bits • Flow Control: No flow control • Protocols: Ethernet, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS Control, signalling and connection elements The interface is equipped with status LEDs, a 6-36 Vdc power supply port, an RS-485 serial port for connecting Modbus devices, and an RJ45 connector for interfacing with the IP data network.

Signalling elements: • PWR: indicates that the device is correctly powered • LINK: (1) The LED is green when the network cable is connected. (2) When the TCP connection is established (or in UDP mode), the LED is blue (actually with a faint green light). It can be used to assess whether the serial port server has established a communication connection with the device connected to the network. • ACT: (1) When the network port sends data to the serial port, the indicator light is green. The flashing time is 1 second longer than the actual communication time, which makes it easier to detect short...

The connection to the Modbus network is made via the screw terminal a located on the front of the device at the top. The screw terminals labelled “RS485A” (positive) and “RS485B” (negative) on the 3-pin pull-out connector are used for connection. • Screw tightening of conductors • Max. conductor cross-section 2.5 mm2 (rigid) or 1.5 mm2 (flexible) • Recommended conductor stripping approx. 6 mm When logging in for the first time, leave the password field empty and click on Login. On subsequent logins, if you have set a password, enter it in the Password field. This takes you to the configuration...

Marks • CE, UKCA: the device complies with the Electromagnetic Compatibility Directive (2014/30/EU), the Low Voltage Directive (2014/35/EU) and the RoHS 2 Directive (2011/65/EU). The device is maintenance-free. To clean use a dry cloth. It must be avoided the use of solvents or other aggressive substances. At the end of its useful life the product described in this datasheet is classified as waste from electronic equipment in accordance with the European Directive 2012/19/EU (WEEE recast), and cannot be disposed together with the municipal undifferentiated solid waste. A Important! Improper disposal...