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IP-Relay HWg-ER02a Ethernet Relay Unit
Description
IP Relay ER02a is a RS-232 / RS-485 serial line converter with two 230V-rated SPDT relays. The contacts and the serial line can be controlled using the free HW VSP (virtual serial port) software, or using the documented M2M protocol. The communication protocol is based on Telnet and RFC2217 extensions. The included SDK gives examples, in several programming languages, of using IP Relay in your software and applications.
Product
User Manual >>   Includes IPRelay, PSU, CD, manual and RS232 Lead   Ethernet - RJ45 (10BASE-T - IEEE 802.3) RS-232 Serial port (RxD, TxD, CTS, RTS, GND) 7, 8, or 9 data bits; baudrate: 50..115200Bd; HW/SW handshaking RS485 via screw terminals Virtual serial port for Windows 2000/XP/Vista/Windows 2000 Server/Windows 2003 Server available on CD Two independent relays controlled via Ethernet by NVT commands (M2M protocol) up to 240V/10A DIP2 switch intended for free use e.g. for identification of service works. Possible ways of device configuration RS-232 Setup (over serial port using any RS-232 terminal - 9600 8N1) UDP Setup (configuration of basic network parameters) TCP Setup (remote configuration in the terminal via TCP) Access security and relay control: You can limit access to the device only from a predefined IP address range TCP connection can be secured using a 128-bit TEA algorithm DIN Rail mounting - Plastic box dimensions: 145x90x45mm Power: 8–24VDC / 0.2A
Description
The IPRelay is a combined Ethenet to Serial converter (RS232 and RS485) and dual channel mains relay controller. Connect it to your network via a standard RJ45 connector, set-up its' IP address and TCP port number and you are away. With the supplied Virtual Com port software you can simply communicate with your serial device as if it were connected to the back of your PC. Programmers can communicate directly with the IPRelay using standard TCP/IP protocols.
The built-in relays are controled using NVT commands. This is a 7-byte sequence, which is sent to the opened TCP/IP connection and if accepted, it is confirmed with a similar 7-byte sequence sent back. This TCP connection is similar to the TP connection to the RS-232 port, but when using the NVT (which is a standard TELNET) the data from serial port are not interrupted when sending the commands. Network modes TCP/IP Server - After powering up, the device listens on the given port and awaits client connection. When the client connects, data from the Ethernet are sent to the serial line and vice versa. If the client is not connected and data are coming from the serial line, they are stored in a buffer (size is configurable) and transmitted immediately after establishing a connection, unless clearing of the buffer upon establishing a connection has been requested in the SETUP. TCP/IP Client/Server - IP Relay keeps the server function but when any data are received from the serial line, it has a preset IP address of the opposite side and tries to establish the connection as a client. If not successful, the data are stored into the buffer and transmitted on the next established connection no matter if it is in the Client or Server mode. UDP – only allows the data transfer to the RS-232
Software
Hercules Utility This utility will help you testing a setting up the device. . RS-232 terminal TCP/IP Client terminal TCP/IP Server terminal UDP terminal UDP Config Test mode (TCP/IP NVT commands + TEA)
HW Virtual Serial Port Virtual serial port driver for windows is a software tool for adding a virtual COM port to your windows system. All the data from this port is then redirected to another HW interface. You can control the relays using the "Binary I/O" tab. Unlimited, free Virtual Serial Port for any TCP/IP device. Designed for Windows 2000, XP Vista, 200 server, 2003 server. If the device supports RFC 2217 (NVT), you can setup all the serial port parameters (speed, parity, stop bits). The driver works as a "TCP client", but it can be also used in "TCP server" mode. Logging all the communication into a file, to make debugging easier. You can create more virtual serial ports on one system using command line parameters The software can be run o a windows startup and hidden to the system tray.
Borland C++ communication example A simple TCP/IP device communication example, written in Borland C++ Builder 6.00. It demonstrates a simple Client terminal with basic NVT (Network Virtual Terminal) commands = Are You There and I/O functions extension. Delphi Charon 1 - NVT communication example A simple TCP/IP device communication example, written in Borland Delphi 5. It demonstrates a simple Client terminal with basic NVT (Network Virtual Terminal) commands = Are You There and I/O functions extension. MS Visual Basic example Simple routines for NVT commands and a TCP/IP device over Winsock in MS Visual Basic 5.0. Simple I/O commands are implemented, but without TEA.
Java NVT simple Code Example A very simple I/O pins control written in JAVA. The application is not password protected, so you can modify it as you wish. PHP - working with the I/O Controller A simple remote I/O pins control. User requests a www page from the server, which opens a connection to the predefined IP and port, reads and displays the values on the final www page.
Specifications
Ethernet port Interface RJ45 (10BASE-T / 100BASE-Tx) Compatibility Ethernet: Version 2.0/IEEE 802.3 Supported protocols IP: ARP, TCP/IP, NVT, RFC2217, UDP/IP Network modes TCP/IP server, TCP/IP client/server, UDP/IP Communication security 128-bit TEA cipher, predefined range of IP addresses Serial port 1 DB9F Data bits 7, 8 or 9 Stop bits 1 or 2 Parity None / Odd / Even / Mark / Space RS-232 interface RxD,TxD,RTS,CTS,GND Communication speed Adjustable in the range of 50..115200 Bd Relay 2 x Changeover - Max. load of the contacts max. 24V / 16A DC; max. 250V / 16A AC Environment parameters Temperature Operation : -5 to +50 °C , Storage : -5 to +75 °C Relative humidity (non-condensing) 5 to 95 % LED diodes POWER (green) GREEN – power supply turned on LINK & Activity (green) GREEN - Ethernet connection RxD/TxD (green/red) Green – RS-232/RS485 receiving activity Red – RS-232/RS485 transmission activity RS-485 (green) RS-485 Actived Relay 1 (red) Relay 1 closed Relay 2 (red) Relay 2 closed DIP switches DIP1 - RS-232 Setup ON = RS-232 Setup mode (9600 8N1) OFF = Ethernet mode DIP2 - Remote Input ON = RS-485 Enabled OFF = RS-485 disabled DIP3, DIP4 RS-485 termination Other parameters Supply voltage 12-30 V/ 150 mA DC- coaxial connector (barrel), GND on the shield, terminal Dimensions 145x90x45 [mm] (H x W x D ) Mounting method Wall attachment a DIN molding. For installation into SwitchGear. Weight 225 g
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