Ethernet Cable - Mitsubishi Electric MELSEC iQ-R Series User Manual

Ethernet cable

The following shows the Ethernet cables that can be connected to a recorder module.
Connectable Ethernet (twisted pair) cables (sold separately)
The Ethernet cables compliant with IEEE802.3 1000BASE-T/100BASE-TX/10BASE-T standards can be used.
Type
1000 Mbps
100 Mbps
10 Mbps
Wiring of an Ethernet Cable
The following shows the methods for connecting and disconnecting an Ethernet cable.
■Connection procedure
1.
Check the insertion direction, and insert an Ethernet cable into the Ethernet port on a recorder module until it clicks.
2.
Lightly pull the cable to check that it is securely connected.
3.
Check the SPEED LED lighting status of the Ethernet port connected with the Ethernet cable. (Page 27 Part names)
• The time required from when an Ethernet cable is connected to when the SPEED LED turns ON may vary.
Normally, it turns ON in a few seconds. However, it may take longer because the linking-up processing is
repeated due to the device condition on the line.
• When the SPEED LED does not turn ON, check if the connected Ethernet cable has any failure.
• The SPEED LED turns OFF when connecting with an Ethernet device on the network the data transmission
speed of which is 10 Mbps. Check the communication status by performing the PING test etc.
■Disconnection procedure
1.
Pull out the Ethernet cable while pinching a clip on the connector.
■Considerations for 1000BASE-T/100BASE-TX connection
A communication error may occur due to the high frequency noise generated from a device other than a programmable
controller depending on the installation environment.
The following shows the measures to be taken on the module side to prevent the influence of high frequency noise.
• Do not bundle a cable with the main circuit or power cable, or do not place it near those lines.
• Place cables in a duct.
• In the environment where a cable is susceptible to noise, use the STP cable.
• Change a target device connected with a recorder module to one which communicates at 10 Mbps, and decrease the data
transmission speed.
Unshielded twisted pair cable (UTP cable)
Shielded twisted pair cable (STP cable)
Straight cable
Category 5e or higher
Category 5 or higher
Category 3 or higher
Crossover cable
Category 5e
Category 5 or 5e
Category 3 to 5e
5 SYSTEM CONFIGURATION
5.3 Recorder Module
5
35