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6-6 Communications Settings

6-40

processing set for the communications auto return will be executed. The number of retries

can be set to between 0 and 255 times. Input the value by using the tenkey or the Up ( )

and Down ( ) buttons that are displayed by pressing the display area.

The default setting is 5 retries.

Precautions

for Safe Use

Set the retry counts to 5 retries min. when using 1:N NT Links. If less than 5

retries is set, abnormal communications may occur.

• Port Communications Method and Communications Type

Set the communications method for serial ports A and B, for Ethernet and for Controller Link. The

right half of the screen will change according to the settings.

Reference

• To change the communications method for another port, the Write Button must be pressed before

continuing. The settings will not be saved if the communications method is switched without press-

ing the Write Button.

• For details on Temperature Controller and Memory Link setting methods and other procedures, re-

fer to the NS Series Host Connection Manual (Cat. No. V085).

• For details on Host Link setting methods and other procedures, refer to the NS Series Host Con-

nection Manual (Host Link).

z Supported Communications Method Combinations

It is not possible to connect to a PLC via NT Link (1:N) with both serial ports A and B at the

same time. It is not possible to use a Bar Code Reader with both serial ports A and B at the

same time. It is also not possible to use a modem with both serial ports A and B at the same

time.

Serial ports A and B, Ethernet and Controller Link can be used in any combination with other

communications methods.

Serial ports A and B, Ethernet and Controller Link, however, cannot be all used simultane-

ously (except when using a Bar Code Reader).

Reference

Serial ports A and B, Ethernet and Controller Link can be set to be used simultaneously,

but proper operations cannot be guaranteed (except when using a Bar Code Reader).

Therefore, do not set all the ports to be used simultaneously.

z Interface Setting (NS5 Only)

A setting in the System Menu for the NS5 enables switching serial port B between using the

expansion interface connector and the serial port B interface connector. Communications will

not be possible with the CX-Designer through the serial port B connector if the expansion in-

Omron NS - SETUP User Manual

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