Connection To A Network - Mitsubishi MELSEC A Series User Manual

5. CONNECTION TO A NETWORK

The following is an explanation of the connection method of the E71 to
the 10BASE-T, 10BASE5 or the 10BASE2.
Point
(1) Installation procedures of the network require sufficient safety measures. For the execution
of such operations as terminal processing of connection cable, trunk line cable etc., please
consult with a trained professional.
(2) When the customer's products match the EMC instructions and the low voltage instructions
for connecting E71, use the method in (4) below to install the ferrite core.
(3) When there is a communication error caused by high frequency noise due to the installation
environment, take the following steps.
• The ferrite core can be installed using the steps in (4) below.
• When communicating with TCP/IP, increase the count of communication retries.
• When connecting to 10BASE-T, use a shielded twisted pair cable (STP) rated in category
3, 4 or 5.
• When connecting to 10BASE2, use a double shielded coaxial cable.
• When connecting to 10BASE5 or 10BASE2, ground the shield of the coaxial cable at both
the local station and companion connected device. (Ground at a place near the
connector.)
(4) Below are the steps for installing the ferrite core based on connection to the 10BASE5
network.
Please install the ferrite core (*1) on the side of the E71 or external devices / the AUI cables
transceiver.
*1 It is possible to use a TDK Corporation style ZCAT 2032-0930.
E71
(5) When using A1SJ71E71N-B5, when the FG signal is regulated on the side of the external
power supply of the original power supply for the transceiver, ground the FG signal at the
original power supply.
Shield
(For 10BASE5 connection)
Ferrite core
AUI cable
Transceiver
11
Coaxial cable
for 10BASE5