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6-9SectionSystem Settings
186
• To quit the memory switch setting screen without confirming the settings, press
the Abort touch switch. The NT31/NT31C will return to the MAINTENANCE
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 commu-
nication error occurs, but tries to re-establish communication. The Retry Counts
setting specifies the number of attempts to be made to re-establish communica-
tion. If communication cannot be recovered within this number of attempts, the
following happens depending on the setting made for the Comm. Auto-return
memory switch (page 183).
• 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
communication are repeated until normal communication 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 immediately be-
fore is redisplayed and attempts are made to re-establish communication.
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 communication errors, refer to 7-2-5 Communication Errors and
Their Remedies (page 239).