Setting Example 3

Q/QnA Series Ethernet

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Settings of External Device

You need the DIP switch settings and the ladder program for the setting of External Device.

Switch Settings

Mode Setting Switch

Settings	Setup Items
0	On-line

Communication Condition Setting Switch

DIP Switch	Settings	Setup Items
SW1	OFF	Selection of line processing at TCP timeout error
SW2	OFF	Data Code Setting
SW3	OFF	Operate along Y19
SW4	OFF	Disable (Fixed to OFF)
SW5	OFF	Disable (Fixed to OFF)
SW6	OFF	Disable (Fixed to OFF)
SW7	ON	CPU Communication Timing Settings
SW8	OFF	Initial Timing Settings

Example of Ladder Program

Example when you communicate with the auto open UDP port No. (Default: 5000) is shown below.

IP address of External Device : 192.168.0.1
Port No. of External Device : 5000

NOTE

You do not need to specify the IP address and the port No. on the PLC for communication with this function.

Above sample is the minimum ladder to enable UDP communication with Display. Please refer to the manual of External Device for more information about error processing and TCP communication, etc.