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4.11.1 NETWORK ADDRESS

Remote control of amplified controllers requires setting up a private local area Ethernet network to interconnect up to

253 units with a single control computer (and possible additional devices such as Ethernet switches). It is called

L-NET and uses a proprietary communication protocol based on TCP/IPv4 called L-COM. The IP addresses on the

units are class C addresses and must be set manually. The default subnet for L-NET is 192.168.1.0.

IP address setting

Each unit must be given an IP address that is not already in use by another device on the network.

For practical reasons, it is suggested to start numbering the units at 192.168.1.1 and then 192.168.1.2,

192.168.1.3… and manually set the control computer on 192.168.1.254.

An IP address is a unique identifier for a network device on a given IP network. In IPv4 networking, it is made

of 4 bytes. In class C private local area IP subnets, the three first bytes are the network prefix and the last byte is

the device identifier on the subnet. Regarding device identifiers, two numbers are reserved: 0 for designating the

subnet, and 255 to communicate with all devices of the subnet (aka the IP broadcast address).

To select the IP address of a controller, follow these steps:

From the main menu select OPTIONS and press the OK key or the encoder wheel (or ESC to abort).

Press the OK key or the encoder wheel to enter the NETWORK ADDRESS page (or ESC to abort). 1.

Turn the encoder wheel to select a value for the last byte. 2.

Value setting resolution

 Turn the encoder wheel to obtain a 1-step resolution.

 Press and turn the encoder wheel to obtain a 10-step resolution.

Press the OK key to validate the setting (or ESC to abort). 3.

For example, in Figure 39 the IP address has been modified from 192.168.1.110 to 192.168.1.123.

Subnet modification

According to the network administration requirements the default subnet (192.168.1.0) can be modified

entering new values for the three first bytes as follows:

Long-click on the key located just below the number to modify until it is selected.

Turn the encoder wheel to select a new value and press the OK key to validate.

Repeat the procedure for all numbers to modify.

4.11.2 DELAY UNIT

Delay values can be displayed in ms (milliseconds), SAMPLES, METERS or FEET. The values in meters or feet are

given for a temperature of 20 °C.

To select the delay unit follow these steps:

From the main menu select OPTIONS and press the OK key or the encoder wheel (or ESC to abort). 1.

Turn the encoder wheel to select DELAY UNIT. 2.

Press the OK key or the encoder wheel to enter the page (or ESC to abort). 3.

Turn the encoder wheel to select the chosen setting. 4.

Press the OK key or the encoder wheel to validate the setting (or ESC to abort). 5.

For example, in Figure 39 the delay unit has been modified from ms to METERS.