Mitsubishi Electric MELSEC Q Series User Manual page 130

(2) Twisted pair cable
Specifications of cables that can be used for connection with peripherals by using the user Ethernet ports (CH1
and CH2), system Ethernet port (S CH1), and Built-in Ethernet ports (CH1 and CH2) are described in the table
below.
Cables conforming to the IEEE802.3 10BASE-T/100BASE-TX/1000BASE-T standards can be used.
Unshielded twisted pair (UTP) cable,
Shielded twisted pair (STP) cable
Type
Straight cable
10Mbps Category 3 or higher
100Mbps Category 5 or higher
1000Mbps Category 5e or higher
In the high-speed communication (100Mbps/1000Mbps) by 100BASE-TX/1000BASE-T connection, a communication error
may occur due to high frequency noise generated from a device other than the C Controller module, depending on the
installation environment.
When configuring a network system, take the following measures on the C Controller module side to eliminate the influence
of high frequency noise.
• Wiring
Do not install the twisted pair cables together with the main circuit lines or power cables.
Place the twisted pair cables in a duct.
• Cable
In an environment where the system is susceptible to noise, use shielded twisted pair (STP) cables.
• Retry processing
In an environment where the system is susceptible to noise, include the retry processing in the user program.
• Data transmission speed
Change the destination device to connect with the C Controller module from 100Mbps and 10Mbps changes the
data transmission speed for communication.
128
Crossing cable
Category 3 to 5e
Category 5 or 5e
Category 5e
User
System
Ethernet port
Ethernet port
(CH1 and CH2)
(S CH1)
For "-LS", consult with the
partner (operating system vendor).
 
 

: Available, -: N/A
Built-in
Ethernet port
(CH1 and CH2)


- -