Problems with communication with I/O units
Maintenance/Troubleshooting
1-80
1.5.5 Communication fails with the DeviceNet
(Slave) unit
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 (Node Name): The extend unit (Unit Name) is not imple-
mented.”
Cause
The DeviceNet may not be properly connected.
Solution
• When the DeviceNet is not properly connected
Connect the DeviceNet properly according to the following manual.
)
DeviceNet Slave Unit Hardware Manual Chapter 3 Installation
• When the DeviceNet is properly connected
Correct the problem according to the following procedure.
(1) Disconnect the DeviceNet cable. Measure the power supply voltage of each GP unit and
adjust it to the value within the range of “Rated Voltage” 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 prob-
lem accordingly.
)
“ Is the LED indicating an error?” (page 1-81)
If the LED does not turn ON, the GP unit may be faulty. Please contact your local GP distributor.
)
“1.7.2 Contact us!” (page 1-164)
(3) If the DeviceNet unit’s LED does not turn ON, check if any connector pins are bent or bro-
ken. Connect the DeviceNet unit with attention to the connection.
“(Node Name): Error During Initialization of Interface Module”
Cause
The DeviceNet unit may not be properly connected or set, or the GP unit may have a
problem.
Solution
Check the status of the DeviceNet unit’s LED and correct the problem accordingly.
)
“ Is the LED indicating an error?” (page 1-81)
• For details about the errors other than described above, refer to the following
section.
)
