Mitsubishi Electric MELSEC iQ-R Series User Manual page 64

Wiring products
The following describes the devices used for Ethernet.
An Ethernet-equipped module determines whether to use 1000BASE-T/100BASE-TX/10BASE-T and the full-
duplex/half-duplex communication mode based on the hub. For connection to the hub with no automatic
negotiation function, set the communication mode on the hub side to meet the mode of the Ethernet-equipped
module. (Page 30 Performance Specifications of Ethernet)
■Ethernet cable
Use Ethernet cable that meets the following standards.
Communicati Ethernet cable
on speed
*1
1Gbps Category 5e or higher, straight cable (shielded, STP)
Category 5e or higher, crossing cable (shielded, STP)
100Mbps Category 5 or higher, straight cable (shielded, STP)
Category 5 or higher, crossing cable (shielded, STP)
10Mbps Category 3 or higher, straight cable (shielded, STP)
Category 3 or higher, straight cable (UTP)
Category 3 or higher, crossing cable (shielded, STP)
Category 3 or higher, crossing cable (UTP)
*1 The CPU module (built-in Ethernet port part) does not support the communication speed.
A communication error may occur due to high-frequency noise from devices other than a programmable
controller in a given connection environment. The following describes countermeasures to be taken on the
Ethernet-equipped module side to avoid high-frequency noise influence.
Wiring
• Do not bundle the cable with the main circuit or power cable or do not place it near those lines.
• Place the cable in a duct.
• When using a UTP cable, use STP cables.
Communication method
• Use TCP/IP for data communications with connected devices.
• Increase the number of retries of communications if needed.
Transmission speed
• Change the communication speed to be slower than the speed of communications connected with an
Ethernet cable in "Communication Speed" of "Application Settings". ( MELSEC iQ-R Ethernet User's
Manual (Application))
■Hubs
Use hubs that support the transmission speed of communication when using hub in the Ethernet.
6 WIRING
62
6.1 Ethernet Wiring
Connector Type
RJ45 connector 1000BASE-T
100BASE-TX
10BASE-T