NT31C-ST143-EV3 Omron, NT31C-ST143-EV3 Datasheet - Page 256

• Manufacturer Part Number: NT31C-ST143-EV3
• Description: 5.7 8-Color Dsp,STN,Ivory,Eng
• Manufacturer: Omron

Specifications of NT31C-ST143-EV3

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7-2-5
Operation When a
Communications Error
Occurs
Operation When
Communications Errors
Occur
Display of
Communications Errors
Responding to Displayed Error Messages
Unable to write System Settings.
Unable to erase Screen Data.
Communications Errors and Their Remedies
Message
This section describes the errors relating to communications that can occur
during operation, and their remedies.
When a communications error occurs, the error message is displayed at the
NT31/NT31C, and the buzzer sounds, provided the setting made for Buzzer
Sound in the System Menu is other than OFF. An error message is displayed
provided the setting for the Comm. Auto-Return memory switch is not ON
(note that some error messages are displayed even if the setting is ON).
When an error message is displayed, remove the cause of the error and then
press the OK touch switch displayed on the screen. The NT31/NT31C will
return to the screen that was displayed before the error occurred, and opera-
tion will restart.
For communications errors, the name of the port at which the error occurred,
the error classification (send or receive error), the details of the error, the
probable cause, and the remedy, are displayed as shown below.
Example:
Parity error at serial port A
Receive Errors
The following errors can occur when receiving data.
Hardware fault, or flash memory
(memory for storing the system
program) has reached its life.
Hardware fault, or flash memory
(memory for storing the system
program) has reached its life.
• Parity error
• Framing error
• Overrun error
• FCS (sum value) error
• Time out error
• Data over flow error
• PLC unit No. error (host link only)
• NAK received (in the case of the host link, the end code is also displayed)
• Undefined command error
Cause
If the same message is displayed on repeating
writing of system settings several times, contact
your OMRON service center.
If writing is normally terminated after the error
message was once displayed, the Memory
Switch setting for system program may have been
altered. In such a case, check and re-set the set-
ting in the Memory Switch menu of the Mainte-
nance mode.
If the same message is displayed on repeating
screen data deletion several times, contact your
OMRON service center.
Remedy
Section 7-2
239