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Chapter 3: Installation and Initial Setup
3. The remaining screens are identical to those shown in configuring your gateway using a network connection.
To exit Console Mode, press and hold the “Mode” switch for t wo seconds.
The LEDs go back to their normal states when the device resumes normal operation.
3.5 LES431A Modbus Hardened Serial Server Operational Connections
LES431A Modbus Hardened Serial Servers can operate in Direct IP Mode.
Using LES431A Modbus Hardened Serial Servers in Direct IP Mode
A Direct IP connection allows applications using TCP/IP socket programs to communicate with the COM ports on the Modbus
Hardened Serial Server. In this type of application, the Modbus Hardened Serial Server is configured as a TCP server. The socket
program running on the PC establishes a communication connection with the Modbus Hardened Serial Server. The data is sent
directly to and from the serial port on the server.
To set up a Direct IP Mode connection:
1. Connect the Modbus Hardened Serial Server to the network and a Modbus network as described in previous sec tions.
2. Configure the Modbus Hardened Serial Server with the appropriate network set tings (using Modbus Hardened Serial Server
Manager or the Web interface).
3. Configure your software application with the appropriate IP address and por t number to communicate with the Modbus
network(s).

Diagram Format

Rule Size: 0.013

PC
Network
Serial device
Modbus Hardened
Serial Server
(LES431A )
Figure 3-36. Direct IP Connection.
3.6 Initiating a Hardware Reset on the Modbus Hardened Serial Server
To initiate a Hardware Reset on the Modbus Hardened Serial Server, press and hold the Mode switch for 0 to 2 seconds, and then
release it. The LED indicators respond as follows:
1. The Ready LED blinks three times per second while the but ton is being pressed.
2. The Modbus Hardened Serial Server is in Reset Mode when the Port 1 LED is On and the Ready LED is Off.
3. The LEDs go back to their normal states when the device resumes normal operation.
3.7 Reloading Factory Defaults
To reload Factory Defaults, press and hold the Mode switch for more than 10 seconds. The LED indicators respond as follows:
1. The Ready LED blinks three times per second while the but ton is being pressed.
2. The Modbus Hardened Serial Server is in Factory Default Mode when the Port 1 LED and the Ready LED are both On.
The Modbus Hardened Serial Server reloads all factory default configuration parameters.
3. The LEDs go back to their normal states when the device resumes normal operation.
NOTE: Factory default parameters are listed in Appendix A .