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- FAQ > Controllers > Programmable Controllers MELSEC > Network related products > Cause to turn on the ERR LED of a CC-Link master module
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Cause to turn on the ERR LED of a CC-Link master module
What makes the ERR LED of a CC-Link master module turn on?
- Category :
Answer
All stations communication error of a slave station.
When POWER of the slave station is off, check if 24 V DC has been supplied.
When POWER is on, check the station number and transmission speed setting of the slave station and check the cable for a disconnection or improper wiring.
When POWER of the slave station is off, check if 24 V DC has been supplied.
When POWER is on, check the station number and transmission speed setting of the slave station and check the cable for a disconnection or improper wiring.
- Product Name
- Network Related Products
- Series
- CC-Link
