Delta RMC101 - Manual (Page 70)

RMC100 and RMCWin User Manual
3-20
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.