T.5.7 DeviceNet (Slave Unit) will not communicate

Is an error message displayed?

If any of the following error messages appears on the Display, the DeviceNet unit may not be properly recognized.

"0x47RHxx071 PLC1(example): The unit (Unit Name) is not implemented."

Cause

The DeviceNet unit may not be properly connected.

Solution

Connect the DeviceNet properly according to the following manual.
DeviceNet Slave Unit Hardware Manual Chapter 3 Installation.

Correct the problem using the following steps.

  1. Disconnect the DeviceNet cable. Measure the power supply voltage of each display unit. Adjust the voltage to within the "Rated Voltage" range specified in the manual. Turn the power ON and check if the DeviceNet unit's LED turns ON.

  2. If the DeviceNet unit's LED turns ON, check the detail of the LED error and correct the problem accordingly. 
    Are the LEDs indicating an error?
    If no LEDs turn ON, the LT may be faulty. Please contact customer support.  
    T.10.2 Telephone Contact

  3. If the DeviceNet unit's LED does not turn ON, check if any connector pins are bent or broken. Connect the DeviceNet unit with attention to the connection.

"PLC1(Example): Error During Initialization of Interface Module"

Cause

The DeviceNet unit may not be properly connected or set, or the display unit may have a problem.

Solution

Check the status of the DeviceNet unit's LED and correct the problem accordingly.
Are the LEDs indicating an error?

Are the LEDs indicating an error?

Cause

The DeviceNet unit may not be properly connected or set, or the display unit may have a problem.

Solution

Solution Check the following LED status and correct the problem:

DeviceNet connector part

LED status

Things to be checked next

Module LED

Red

On

The display unit may be faulty. Please contact customer support.


T.10.2 Telephone Contact

Blinking

Error occurred. Judged as recoverable and automatically restoring. If the LED continues to flash red, the display unit may be faulty. Please contact customer support.
T.10.2 Telephone Contact

Green

Blinking

Check the communication settings for the connected device. Enter offline mode in the display unit and select [Peripheral Settings], [Device/PLC Settings] and then [DeviceNet].

Network LED

Red

On

The communication with the DeviceNet and the DeviceNet-related device is not established. Check if your cable is DeviceNet-compatible.

Blinking

Timout error occurred. Check the communication settings or reset the display unit.

Green

Blinking

Is the DeviceNet cable properly connected? Turn OFF the display unit. Reconnect the DeviceNet cable so that the connector is firmly connected.