3
1. Error Messages 3-9
Error Handling
3. Communication Error
When communication is not established between a V9 series unit and a controller, or any abnormality
(noise etc.) is detected, the communication error screen is displayed on the V9 series unit.
The display of an error differs depending on the option selected for [Comm. Error Handling].
* The setting for [Comm. Error Handling] can be checked and changed in Local mode on the V9
series unit.
For details, refer to “Communication Setting” (page 2-22).
• When [Comm. Error handling: Stop] is selected:
Communication will be stopped entirely and the communication error screen will be displayed. The
[RETRY] switch is available for attempting reestablishment of communication.
• When [Comm. Error handling: Continue] is selected:
The communication error message will be displayed at the center of the screen. The same
communication will continue until restoration, and screen operation is not allowed then. When
communication has been returned to a normal state, the message disappears and screen
operation is allowed.
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