Delta RMC101 User Manual download pdf (Page 70)

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RMC100 and RMCWin User Manual

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3.3.7.6 Communication Driver: TCP/IP-to-RS232 Bridge Configuration

Note: This communication driver requires RMC100 CPU firmware dated 20010522 or later.

The main steps to configuring a TCP/IP-to-RS232 Bridge communication path are as follows:

• Obtain a TCP/IP-to-RS232 Bridge

There are a number of TCP/IP-to-RS232 bridge devices available. A search on the Internet for

"Ethernet to Serial Converter" should find a number of manufacturers providing these devices. The

RMC has been tested with the Lantronix (www.lantronix.com) UDS-10. If multiple RMCs will be

hooked up using the same method, it may be worth investing in a multi-port bridge, so that a single

bridge can handle several RMCs.

• Connect the Bridge to the Ethernet Network

How this is done depends on the particular bridge device, but in most cases will involve using a

CAT5 Ethernet cable to connect the bridge to a hub or switch on the LAN that will be used.

• Connect the Bridge to the RMC

The bridge will be connected to the RMC's "RS-232 Monitor" serial port using an RS232 cable. The

RMC's serial port is DTE. Therefore, if the port on the bridge is DTE, then a cross-over cable

should be used; otherwise a straight-through cable should be used. See RS232 Wiring for details.

• Configure the TCP/IP-to-RS232 Bridge

Most of the work in setting up this driver involves configuring the bridge device. These bridges are

typically designed to be very flexible, and as a result can be fairly confusing to set up. The

following serial settings must be used to communicate with the RMC:

Signals: RS232

Baud Rate: 38400

Data Bits: 8

Parity: None

Stop Bits: 1

Flow Control: None

In addition to these basic serial settings, there are often many other options for the serial interface.

The bridge should act in Server mode. Therefore, it will not need to deal with initiating connections

or setting up a specific remote IP address.

The second main set of settings you will need to configure in the bridge is the TCP/IP interface.

This will include the following settings:

• IP Address, Subnet Mask, and Default Gateway: The same guidelines laid out in

Understanding IP Addressing for selecting an RMC ENET's IP parameters apply when

selecting a bridge's IP parameters. The IP address entered for the bridge will need to be

entered in RMCWin, as described below.

• TCP/UDP: RMCWin will open a TCP connection. Therefore, if you are given the option of

selecting between TCP and UDP, select TCP.

• TCP/UDP Port: The TCP/UDP port number set up for the bridge's serial port is really

irrelevant, as long as the same value is entered in the RMCWin TCP/IP-to-RS232 Bridge

driver configuration screen.

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