
A-90188E-01 CONNECTION 3.HARDWARE CONNECTIONS
- 42 -
3 HARDWARE CONNECTIONS
This section describes information relating to the physical Ethernet
connection.
CAUTION
1 Before connecting or disconnecting cables to and
from the MODBUS/TCP board, cut the power supply
of CNC.
2 Please inquire of each manufacturer about the
construction of network or the condition of using the
equipment except the MODBUS/TCP board (hub,
cable etc.). When configuring your network, you
must take other sources of electrical noise into
consideration to prevent your network from being
influenced by electrical noise. Make sure that
network wiring is sufficiently separated from power
lines and other sources of electrical noise such as
motors, and ground each of the devices as
necessary. Also, a high and insufficient ground
impedance may cause interference during
communications. After installing the machine,
conduct a communications test before you actually
start operating the machine.
We cannot ensure operation that is influenced by
network trouble caused by a device other than the
MODBUS/TCP board.