Protect an Omron C200HE program by placing Function 49 in the first ladder rung, using AR 10.01, and configuring the password through that function. The available evidence does not define the operand layout, password format, programming software, or recovery method, so confirm those details before commissioning.
Supported C200HE protection elements
| Element | Confirmed use | Unresolved detail |
|---|---|---|
| CPU | Omron C200HE | No CPU suffix or firmware version is specified. |
| Function | Function 49 creates the password. | The operand syntax and accepted password format are not provided. |
| Auxiliary address | Use AR 10.01. | The evidence does not define its exact role or required state. |
| Ladder location | Create Function 49 in the first rung. | No additional enabling conditions are specified. |
Protection mechanism and limits
The supported mechanism consists of Function 49, AR 10.01, and first-rung placement. Do not substitute another function number or auxiliary address without product documentation that explicitly supports the change.
The evidence says that the function creates a password to protect the CPU program, but it does not define whether protection blocks viewing, uploading, editing, or another operation. Treat the exact protected operations as unverified until tested on the target CPU.
Configure the password rung
- Open the ladder program for the Omron C200HE.
- Create Function 49 in the first rung of the program.
- Use AR 10.01 with that function as directed by the available procedure.
- Configure the password through Function 49 using the programming environment's supported entry fields. Do not guess the operand arrangement or password encoding if the software does not identify them.
Before transferring the program, retain an authorized record of the password and an accessible copy of the unprotected project. The evidence provides no password-reset or recovery procedure.
Resolve missing configuration details
Stop configuration and consult the applicable C200HE programming documentation if Function 49 does not expose an obvious password entry method. Confirm the instruction syntax, AR 10.01 usage, allowable password format, and any CPU operating-mode requirements. These details cannot be derived safely from the available information.
Also confirm what happens after a lost password. Do not assume that an upload, memory clear, or CPU replacement will recover the project because no recovery behavior is documented in the evidence.
Verify protection before commissioning
- Inspect the compiled or entered ladder and confirm that Function 49 is in the first rung.
- Confirm that the configured address is AR 10.01 and that the password entry matches the authorized record.
- Using an authorized test connection, attempt the operation that must be restricted, such as viewing the program. Record the prompt, status, or denial actually returned by the programming software.
- Authenticate with the stored password and confirm that authorized access remains possible.
The evidence does not specify the expected prompt or status. Accept the test only when the restricted operation fails without the password and succeeds with the correct password, according to the applicable Omron documentation and site procedure.
FAQ
Which function creates a password on an Omron C200HE?
Use Function 49. The available procedure places it in the first rung of the ladder program.
Which AR address is used for C200HE CPU protection?
The specified auxiliary address is AR 10.01. Its exact state and operand relationship are not defined in the available evidence, so verify them in the applicable programming documentation.
How do I verify an Omron C200HE password works?
Confirm Function 49 is in the first rung with AR 10.01, then test the restricted programming operation without and with the recorded password. The evidence does not specify the software prompt or a password-recovery method.