Specifications

Head Station STL-ETH1 (Ethernet) Ethernet
Quick Start Guide for the MELSEC STlite Series 4 - 5
4.2.4 Address Selection Switch
There are two ways to allocate the IP Address to the fieldbus node:
● Manually assignment of the IP address using of the address selection switch
● Automatic assignment of addresses via a DHCP server on the network.
The address selection switch is used to set the host ID (last digit of the IP address). The coding of the
host ID is bit by bit and begins with address selection switch 1 for bit 0 (LSB) and ends with address
selection switch 8 for bit 7 (MSB).
The base address used depends on the IP address currently saved in the head station. With the original
factory settings, the IP address is configured to the value 0.0.0.0. by default. In this case, the static base
address 192.168.1.X is used.
Use the address selection switch to set the host ID, i.e., the last byte ("X") of the IP address saved in the
head station with values between 1 and 254 binary coded.
Restart the head station after adjusting the address selection switch to apply the configuration
changes.
Fig. 4-5: Address selection switch of the
STL-ETH1
NOTE The assignment of the IP addresses via DHCP and the changing of the static base address is not
covered in this Quick start manual. For a detailed description please refer to the user’s manual for
the STL-ETH1.
Fig. 4-6: Example for an address selection
switch setting for the host ID 50
(binary code: 00110010). This results
in the IP address 192.168.1.50
NOTES Use the address selection switch to set the last byte ("X") of the IP address to a value between 1
and 254. The DIP switch is then enabled and the IP address is composed of the base address stored
in the head station and the host ID set on the DIP switch. The IP address setting via the Web-based
Management System is disabled.
If you use the address selection switch to set the value 0 or 255, the address selection switch is dis-
abled and the setting configured in the head station is used.
– With the value 0, the settings of the Web based Management System apply.
– If you set the value 255, the configuration via DHCP is activated.
0
0
1
1
0
0
1
0
MSB (Bit 7)
LSB (Bit 0)