Someone has found problem in the CPU 250-1 of KOYO PLC on K- Sequence communication mode which can not run on DirectNet mode Sure! as We need to change protocol from old to new protocol which is K- Sequence,How to if you need to change the protocol to DirectNET. Could you follow thus as step and picture below.

Step 1.Click open program file.

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Go to Setup Sec. Comm Port to Change the protocol.

Click menu bar : PLC–>Setup–>Setup Sec. Comm Port….

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The protocol now is K-Sequence. Switch to DirectNET, then write to the PLC.

Step2. Click icon write config

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Follow the step as below.

Step3. Click to close Setup windows.

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After that we don’t save,So

Step 5. Click No

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Go to Link Setup… dialog box .

Clcik menu bar : PLC–>Link Setup. . .
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Step 6. Edit Link information.koyo plc simulator

Change protocol to DirectNET, and should be change the name and description.

Step 7. After changes finished click “Auto” and “Accept”.

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Close dialog box

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The CPU 250-1 protocol now is DirectNET.

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Confirm again in Setup Sec. Comm Port. Go to Menu : Setup Sec. Comm Port .

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The CPU 250-1 protocol already changed to DirectNET.

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