Chapter 6 Wiring; Wiring Of An Ethernet Cable - Mitsubishi Electric MELSEC iQ-R Series User Manual

6
WIRING
This chapter shows the method for connecting an Ethernet cable to a high speed data communication module.
For connectable Ethernet cables, refer to the following:.
Page 57 Ethernet (twisted pair) cable (sold separately)
6.1

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 the high speed data communication
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 17 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 to 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
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 high speed data communication 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 to a high speed data communication module to the one which communicates at 10
Mbps, and decrease the data transmission speed.
6 WIRING
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6.1 Wiring of an Ethernet Cable