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COMETH-FIELD-RD
Serial device server RS232/422/485 over Ethernet TCP/IP & MODBUS RTU to MODBUS/TCP data gateway
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The COMETH-FIELD-RD is a serial device server (RS232/422/485) over Ethernet TCP/IP designed for industrial applications with harsh constraints, particularly in terms of temperature resiliency.
The COMETH-FIELD-RD supports the extended temperature range from -40°C to +80°C.
TELNET support (RFC 2217) and COM port redirector enables the COMETH-FIELD-RD to take advantage of Windows & Linux applications wrote for PC serial devices.
MODBUS/TCP Protocol support allows to connect any RS232 ou RS485 MODBUS
equipments to the Ethernet network.
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Instant & direct serial connection
over Ethernet TCP/IP network |
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Ethernet 10/100 auto-detection, plug & play mode auto MDI/MDIX cross-over |
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RS232 (Sub D9 male), RS422/RS485 (Sub D9 female) serial interface, up to 350 Kb/s sustained
data rate |
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Support for TCP Client/Server, DHCP Client, TELNET RFC2217 extension, Telnet Server, COM port re-director (VIP), multipoint or point to point virtual link over UDP modes and MODBUS/TCP Client/Server, MODBUS/RTU & MODBUS/ASCII protocols |
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Scanning I/O for all PLC's running MODBUS/RTU & MODBUS/ASCII |
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Virtual COM port redirection software for Windows 2000, NT & XP (VIP) |
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Easy administration through the
serial link or Ethernet (TELNET) |
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Multiple configuration tool for volume deployment |
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Remote firmware download for
easy upgrade operations |
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External power supply from +9VDC to +36VDC |
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15 kV ESD protection |
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Metallic case, CE industrial standards |
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LEDs signalling for serial & Ethernet signals |
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Extended temperature range from -40°C to +80°C |
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Ethernet / RS 1500 Veff isolation |
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Remote COM port mode
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Works with Windows 9x/me/NT/2K/XP, Linux and requires a COM
port redirector driver software on the PC (VIP).
This mode is supported by the COMETH-FIELD-RD when running the "ServerCom"
firmware and when configured in the TELNET RFC 2217 mode (TELNET
RFC 2217 is a standard).
This mode makes it possible to run any Windows COM applications
without any adaptation (Hyperterminal for example), basically
designed for a local COM port, the Windows communication API
is fully supported. COM port configuration is carried out by
the application itself and not necessarily by the administration
module.
Other redirector softwares relying on the RFC 2217 standard exist for other operating systems.
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TCP socket server mode
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This mode works with any operating system supporting TCP/IP.
It is supported by the COMETH-FIELD-RD when running the "ServerCom"
firmware and when configured in the RAW mode.
The COMETH-FIELD-RD is able to answer to TCP connection request on a
configurable TCP port (it is thus a server).
The application which uses the COMETH-FIELD-RD relies on the SOCKET API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH-FIELD-RD using the administration module.
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TCP socket client mode
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This mode works with any operating system supporting TCP/IP.
It is supported by the COMETH-FIELD-RD when running the "TCP Client"
firmware.
The COMETH-FIELD-RD is able to answer a TCP connection request on a TCP
port to a server, the IP address of the server is programmed
using the administration module.
Connection origin can be established from COMETH-FIELD-RD power ON of
from the rising edge of the DSR signal.
The application which uses the COMETH-FIELD-RD relies on the SOCKET API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH-FIELD-RD using the administration module.
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TELNET mode
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This mode works with any operating system supporting TCP/IP
and which has a TELNET client software, two cases:
Configured TCP port TCP of the Socket TCP Server mode
This mode is supported by the COMETH-FIELD-RD when running the "ServerCom"
firmware and when configured in the TELNET mode.
It doesn't require any application development on the PC,
TELNET is the network application !
TCP port #23
This mode is supported by all the COMETH-FIELD-RD's firmwares.
When the COMETH-FIELD-RD receives a port 23 connection request, it
switches to the administration mode and can thus be configured
(speed, mode ...).
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UDP socket mode
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This mode works with any operating system supporting TCP/IP.
There's no concept of connection/deconnection and thus no server
/ client concept in the UDP mode as in TCP. UDP is a transport
Protocollike TCP but it works faster and is less advanced.
This mode is supported by the COMETH-FIELD-RD when running the "TUNNEL"
firmware and when configured in RAW mode.
The software which uses the COMETH-FIELD-RD relies on the Socket API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH-FIELD-RD using the administration module.
This mode enables to carry out a point-to-point connection between
2 serial ports while relying on IP but without transport of
serial control signals.
Two COMETH-FIELD-RD can be installed on each side but any other equipment
supporting UDP can also be connected.
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TUNNEL UDP & point-to-point mode
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This mode is supported by the COMETH-FIELD-RD when running the "TUNNEL"
firmware and when configured in the TUNNELAPP mode.
The software which uses the COMETH-FIELD-RD relies on the Socket API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH-FIELD-RD using the administration module.
This mode enables to carry out a point-to-point connection between
2 serial ports while relying on IP but with the transport of
serial control signals.
Only two COMETH-FIELD-RD can be installed on each side because TUNNELAPP
is not a standard Protocol.
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MODBUS/TCP data gateway mode
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This mode is supported by the COMETH-FIELD-RD when running the "MODBUS/TCP"
firmware.
In conformity with the MODBUS/TCP Client / Server specifications,
this mode makes it possible to connect any serial MODBUS equipments
(MODBUS/ASCII & MODBUS/RTU) to the Ethernet TCP/IP network.
In this mode, the COMETH-FIELD-RD settles like a bridge between the Ethernet
network and the serial MODBUS equipments which dramatically
simplifies the extension from traditional MODBUS installation
to a MODBUS/TCP based installation on the Ethernet network.
The COMETH-FIELD-RD device can work as a slave or master device on both
sides (Ethernet or Serial).
This mode also makes it possible to connect between them and
in a transparent way several traditional serial MODBUS equipments
through the Ethernet network.
COMETH-FIELD-RD with MODBUS/TCP allows moreover integration within the
same network of serial MODBUS/ASCII & MODBUS/RTU based equipments
and MODBUS/TCP equipments.
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Some illustrations
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Reference to order:
| COMETH-FIELD-RD |
Serial RS232/RS422/RS485 single channel
server over Ethernet TCP/IP, din rail model, +9VDC to +36VDC power supply |
Accessorie for COMETH-FIELD-RD:
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RS485 interface cable for COMETH-FIELD-RD, SUB DB9 connector toward 3 wires (TxRx +, TxRx -, GND), lenght 1.70 m, line polarization activated |
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