Mitsubishi Electric MELSEC iQ-R Series User Manual page 59

■Precautions
Be sure to follow the precautions for wiring. Otherwise, some functions may not operate normally. (It may operate normally
temporarily.)
• Place the Ethernet cable in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled, resulting in
damage to the module or cables or malfunction due to poor contact.
• Do not touch the core of the cable-side or module-side connector, and protect it from dirt or dust. If oil from your hand, dirt
or dust is attached to the core, it can increase transmission loss, arising a problem in a data link.
• Check that the Ethernet cable is not disconnected or not shorted and there is no problem with the connector connection.
• Before connecting the Ethernet cables, check also the CC-Link IE TSN Installation Manual available on the CC-Link
Partner Association website (www.cc-link.org). Failure to follow the instructions in the manual may cause malfunctions.
• Do not use Ethernet cables with broken latches. Doing so may cause the cable to unplug or malfunction.
• Hold the connector part when connecting and disconnecting the Ethernet cable. Pulling the cable connected to the module
may result in malfunction or damage to the module or cable.
• For connectors without Ethernet cables, attached connector covers should be placed to prevent foreign matter such as dirt
or dust.
• The maximum station-to-station distance of the Ethernet cable is 100m. However, the length may be shorter depending on
the operating environment of the cable. For details, contact the manufacturer of the cable used.
• The bend radius of the Ethernet cable is limited. For details, check the specifications of the Ethernet cable to be used.
• Do not use a switching hub for a ring topology.
• In a line topology, do not connect the slave station with no IP address setting between the master station and slave stations,
or between slave stations. A data link may not be performed in the slave stations connected from the slave station with no
IP address setting onwards. However, if the slave station with no IP address setting is connected at the end of the line
topology, the slave stations between the master station and the slave station at the end perform a data link.
• Communication with the Ethernet device may not be possible depending on the specifications of the connected Ethernet
device or switching hub. If communication is not possible, reduce the communication data volume of the Ethernet device.
• When setting "Communication Speed" of the master station and local station to 100Mbps to connect a device with a
communication speed of 100Mbps, enable auto-negotiation of the device.
• Incorrectly configured ring topology can be detected an error on the CC-Link IE TSN/CC-Link IE Field diagnostics and
event history. However, if the system is configured with a switching hub, the error may not be detected.
• When "Network Topology" under "Basic Settings" of the master station is set to "Ring", do not connect a slave station that is
not set in "Network Configuration Settings" of the master station. Otherwise, it will result in an incorrectly configured ring
topology, causing data link to stop at all stations.
• When "Network Topology" under "Basic Settings" of the master station is set to "Ring", do not connect a slave whose
communication speed is different from "Communication Speed" of the master station. Otherwise, it will result in an
incorrectly configured ring topology, causing data link to stop at all stations.
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6 WIRING
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