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I/O Controller HWG-88a |
1x RS-232/485 + 8 digitale Eingänge + 8x digitale Ausgänge |
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| I/O Controller: HWg-ER88a RS-232/485 serial port, 8 inputs for contacts and 8 outputs accessible over an Ethernet IP network. HWg-ER88a is a terminal server (serial line) with added binary inputs and outputs. It is controlled over TCP/IP using a Telnet-type M2M protocol. Serial port, inputs and outputs are controlled over a TCP/IP connection using a TELNET-like (RFC2217) M2M protocol. The protocol is fully documented (NVT), the Hercules SW terminal can be used for testing (supports inputs and outputs). * The ER88a serial port can be connected to via a virtual serial port (e.g. COM27) on your networked PC. The HW VSP application for Windows is supplied free of charge. * Eight outputs can be controlled from the command line with a simple HWg IPRC cmd utility. * Control the product from your own application in minutes. Make your work easier with many examples for various programming languages in the HWg SDK (Borland C++ Builder, MS Visual C, VB, Delphi, C#, PHP, JAVA). Box-2-Box mode: Two devices can be connected against each other to extend inputs, outputs, and the serial line over the Ethernet. Basic Features: # RS-232/485 serial port # 8 binary inputs to connect contacts, buttons, or 7 to 24VDC # 8 binary outputs (open collector) # Virtual serial port driver for Windows = easily get e.g. COM17 on your PC # Industrial model, fits on a DIN rail # Ethernet interface for connecting to an IP network * Telnet-like M2M protocol * Support for TCP Server and TCP Client/Server modes * Box-2-Box mode |
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| Applications * Link up to eight buttons / switches with a SW application. * Connect your RS-232 devices to the network: barcode / RFID scanners, serial printers, displays. * The outputs can, for example, open a door, turn on a horn, or disconnect power – remotely over the network. |
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| The Box-2-Box mode allows you to connect two units against each other, 1:1. * Extension of RS-232 or RS-485 range over the network * Inputs at one device control outputs at the other device, 1:1 |
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| M2M communication |
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| # TCP/IP Server [Client -> Server] I/O Controller, as a TCP server, listens for incoming TCP connections from a computer (a PC or a server). When the connection is established, data in the internal buffer are transmitted, and then bidirectional communication can take place, similarly to a common "terminal server". Binary inputs and outputs can be controlled with a M2M protocol that uses an extension of RFC2217 (NVT support must be enabled). # TCP/IP Client/Server [Server <- Client] I/O Controller has received some data into its internal buffer from the serial port (or has detected a change at the binary inputs) and attempts to send it to the server. The unit tries to establish a connection to the specified outgoing IP address and port. If unsuccessful, it waits for about one second in the TCP server mode and then tries to establish the connection again. Binary inputs and outputs can be controlled with a M2M protocol that uses an extension of RFC2217 (NVT support must be enabled and the TCP connection must be established). # UDP/IP Data are sent as UDP packets, without delivery acknowledgement. In the UDP mode, the device uses a sophisticated "packetiser" that allows you to specify broad conditions about what should be sent from the serial line to the Ethernet, what should not, and when. Binary inputs and outputs cannot be controlled in the UDP mode. # VSP (Virtual serial port) The HW VSP software, when installed on a PC with Windows, creates a virtual serial port (e.g. COM7), and the serial port at the I/O Controller then works as a physical port of your PC. Binary inputs and outputs can be controlled from HW VSP using the "Binary I/O" tab, as long as NVT support is enabled for both the HW VSP software and the I/O Controller unit. |
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