6 WIRING
6.1 Wiring of an Ethernet cable
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6
WIRING
This section shows the method for connecting an Ethernet cable to the high speed data logger module.
For connectable Ethernet cables, refer to the following section.
Page 71 Ethernet (twisted pair) cable (sold separately)
6.1
Wiring of an Ethernet cable
The following shows connection and disconnection of the Ethernet cable.
Connecting procedure
1.
Check the insertion direction, and insert an Ethernet cable into the Ethernet port on the high speed data logger module
until it clicks.
2.
Check if the cable securely is connected by pulling it slightly.
3.
Check if the SPEED LED lighting status of the Ethernet port connected with the Ethernet cable. (
• The time required from when an Ethernet cable is connected to when the SPEED LED turns ON may vary.
Normally, the LED 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 is turned OFF when connecting with an Ethernet device on the network of which the
transmission rate is 10 Mbps. Check the communication state by executing the PING test etc.
Disconnecting 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 high-frequency noise generated from devices other than the programmable
controller depending on the installation environment.
The following shows the measures to be taken on the high speed data logger 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 a cable in a duct.
• In the environment where a cable is susceptible to noise, use the STP cable.
• Change the target device connected with the high speed data logger module to one which communicates at 10 Mbps, and
decrease the data transmission rate.
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