IP Relay HWg-ER02b connects a full RS-232/485 serial port and a set of two digital inputs and two digital outputs to the Ethernet. It features a truly full RS-232 serial port (9-pin). The serial port of the unit can be connected to a PC over the LAN, with the serial port accessible in Windows as a Virtual Serial Port (VSP). Its digital inputs and outputs can be controlled over the Web or through Modbus/TCP.A built-in web server is used for configuring. Using the free HW VSP3 application, up to 100 remote serial ports can be connected to one PC.Two devices can be connected in Box-2-Box mode. In this mode, the digital I/O as well as the RS232/485 serial line is extended (tunneled) over the LAN.Features:1x full serial port RS-232/485 with 9-bit communication supportModbus/TCP protocol supported for I/O control2x Digital Input (for Dry contacts, switches, or 5–20V DC)2x Digital Output (NO/NC relay; max 230V/16A)M2M communication protocols: HTTP, Telnet, TCP Server, TCP Client/Server, Modbus/TCPConnected via LAN. Configuration via built-in web server or TelnetFull RS-232 serial port (9 pins: RxD, TxD, GND, CTS, RTS, DSR, DTR, RI, CD)RS-485 serial interface: up to 115,200 BdFree software HW VSP3: Virtual Serial Port for Windows (NT service, x64 systems), supports up to 100 remote serial portsCompatible with third-party SW; programming examples available in the HWg-SDK (Borland C , MS Visual, VB, C#, PHP, JAVA, and more)Applications and usage:Link two buttons/switches to a software applicationConnect RS-232 devices to your LAN (barcode / RFID scanners, serial printers, displays)Control relay outputs remotely to open doors, trigger alarms, or disconnect power (web relay use)I/O can be controlled over Modbus/TCP from any SCADA system, independently of the serial lineRemote power switching (230/110V AC) for appliances and equipmentConnect RFID readers over LAN and remotely reset associated equipmentIntegrate barcode readers over Ethernet while controlling DI/DO in an applicationRemote UPS or diesel generator monitoring with RS-232 remote start/test over I/OVending machinesSecurity alarmsAccess control systemsBarcode scanners with LAN relay integration (remote I/O)
