Ý nghĩa DIP Switch của PLC Omron (CP1H, CP1L CP1E, CJ1M, CJ2M) như thế nào chắc các bạn ít để ý, nhưng thực ra nó khá hữu ích trong một số tình huống như bạn không thể kết nối được PLC Omron với máy tính qua cổng COM RS232, rồi bạn không download được chương trình vào PLC mặc dù PLC không đặt mật khẩu (Password)…
Trường hợp bạn không kết nối được PLC Omron với máy tính bạn cần chỉnh lại Switch 4 và 5, tương ứng cổng Peripheral or cổng RS232 9 chân của PLC
Trường hợp bạn không nạp được chương trình cho PLC bằng CX-Progammer, ngoài mật khẩu thì bạn cần chỉnh lại Switch 1 = OFF.
Ý nghĩa cụ thể từng DIP Switch setting (mình để tiếng Anh để giữ nguyên ý nghĩa gốc, các bạn tự dịch nhé):
| Pin | Function | Setting | Description | |
| 1 | Write-protection for user program memory (UM) | ON | Write-protected | User program memory is write-protected when this pin is ON. Turn ON to prevent the program from being changed accidentally. |
| OFF | Read/write | |||
| 2 | Automatic transfer of the program at start-up | ON | Yes | The program (AUTOEXEC.OBJ) and PLC Setup (AUTOEXEC.STD) will be transferred from the Memory Card to the CPU Unit automatically at start-up when this pin is ON. (See note 4.)
A PLC’s software (program and PLC Setup) can be completely initialized just by inserting a new Memory Card and turning on the power. This can be used to switch the system to a new arrangement very quickly. Note When pin 7 is ON, reading from the Memory Card for easy backup is given priority; even if pin 2 is ON, the program will not be automatically transferred. |
| OFF | No | |||
| 3 | Not used. | |||
| 4 | Peripheral port communications parameters | ON | Use parameters set in the PLC Setup | • Leave this pin OFF when using a Programming Console or CX-Programmer (peripheral bus setting) connected to the peripheral port.
• Turn this pin ON when the peripheral port is being used for a device other than a Programming Console or CX-Programmer (peripheral bus setting) |
| OFF | Auto-detect Programming Device
(See note 2.) |
|||
| 5 | RS-232C port communications parameters | ON | Auto-detect Programming Device
(See note 3.) |
• Leave this pin OFF when the RS-232C port is being used for a device other CX-Programmer (peripheral bus setting) such as a Programmable Terminal or host computer.
• Turn this pin ON when using CX-Programmer (peripheral bus setting) connected to the RS-232C port |
| OFF | Use parameters set in
the PLC Setup |
|||
| 6 | User-defined pin | ON | A39512 ON | The ON/OFF status of this pin is reflected in A39512.
Use this function when you want to create an Always-ON or Always-OFF condition in the program without using an Input Unit. |
| OFF | A39512 OFF | |||
| 7 | Easy backup setting | ON | Writing from the CPU Unit to the Memory Card
Or: Restoring from the Mem-ory Card to the CPU Unit |
Press and hold the Memory Card Power Supply Switch for three seconds
To read from the Memory Card to the CPU Unit, turn ON the PLC power. This operation is given priority over automatic transfer (pin 2 is ON) when power is ON. |
| OFF | Verifying contents of Memory
Card. |
Press and hold the Memory Card Power Supply Switch for three seconds. | ||
| 8 | Not used | OFF | Always OFF. | |
DIP Switch setting áp dụng cho tất cả các dòng PLC Omron từ C200H CQM1H đến CP1E, CP1L, CP1H, CJ1M, CJ2M..
@by UnlockPLC
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pro
very good content.
Ammar Ibrahim
Dear unlockplc can you send the software used to program the DOP-A series of delta HMI touchscreen?
I am really need it, please.