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System Settings Section 6-9
• To confirm the settings and quit the memory switch setting screen, press
the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings,
press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-13 Setting the Retry Count
The NT31/NT31C does not immediately display an error screen when a com-
munications error occurs, but tries to re-establish communications. The Retry
Counts setting specifies the number of attempts to be made to re-establish
communications. If communications cannot be recovered within this number
of attempts, the following happens depending on the setting made for the
Comm. Auto-return memory switch (page 184).
• Comm. Auto-return ON:
Operation in the RUN mode is continued without displaying an error
screen. Regardless of the setting made for Retry Counts, attempts to
re-establish communications are repeated until normal communica-
tions is achieved.
• Comm. Auto-return OFF:
The RUN mode is ended and an error screen is displayed. On pressing
the OK touch switch on the error screen, the screen displayed imme-
diately before is redisplayed and attempts are made to re-establish
communications.
The System Menu can be displayed from the error screen by pressing
any two of the four corners of the touch panel simultaneously.
The setting range is 0 to 255 times. The default (factory) setting is 5 times.
Reference: For details on communications errors, refer to 7-2-5 Communications Errors
and Their Remedies (page 239).
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