# Add and Delete Users on Display Unit

You can add and delete users on the display unit.

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1. Adding a User
2. Deleting a User
3. Security Levels

## Adding a User

To add a user, execute the [Security] operation (PopupAddUserDialog).

(Script Example)

Note: For information about [Security] operations, refer to the following.

Security

When the [Security] operation is executed, the following dialog box will appear.

To add a new user to a user group:

1. From the [User Group] drop-down list, select the user group to which you want to add a user.

   Note:

   - The user groups you can work with are user groups below the security level of the logged-in user. However, if the security level of the logged-in user is the highest on the system, then the user groups you can work with are user groups equal to or below the security level of the logged-in user.
     Security Levels
   - The number of users that can be registered to a user group varies depending on the model of the display unit. For information on the number of users you can register, refer to the following.
     Support Model/Feature List
2. In the [Enter User Name] field, enter a name for the new user.
3. In the [Enter Password] and [Confirm Password] fields, enter a password for the new user.
4. Touch the [Add] button.

Password conditions are as follows:

- When [Complex Password] is set to [Enable]
  Passwords must be from 8 to 100 characters long with at least 1 lower case character (a-z), 1 upper case character (A-Z), 1 number (0-9), and 1 special character.
  Available Special Characters

  Special Characters
  ! | ) | ; | ]
  " | * | < | ^
  # | + | = | _
  $ | , | > | ` (Grave accent)
  % | - | ? | {
  & | . | @ | |
  ' (apostrophe) | / | [ | }
  ( | : | \ | ~

- When [Complex Password] is set to [Disable]
  Passwords must be from 3 to 100 characters long.

Note: You cannot configure the [Complex Password] setting here. Use screen editing software to configure this setting. From the [Project Explorer] window, go to [Security] ➞ [Settings], and in the Properties window configure [Complex Password].

### Error Messages

Error Message | Cause
The password and confirmation password do not match. | [Enter Password] and [Confirm Password] entries do not match.
Insufficient password strength. | Password conditions are not satisfied.
Failed to add user. User Name already exists. | The user name you entered is not unique.
Failed to add user. Cannot write to this product. | The application memory capacity has been exceeded.
Failed to add user. Reached maximum number of users in a group. | The number of users in the user group has reached the maximum limit.
Failed to add user. Security level is insufficient to add users to the group. | The security level of the logged-in user is not sufficient to add a user to the specified user group. For security level information, refer to the following. Security Levels Logout is running in the background.
Failed to add user. User Name does not follow naming rules. | The user name you entered does not follow the naming convention. For information on naming conventions, refer to the following. Naming Conventions

## Deleting a User

To delete a user, execute the [Security] operation (PopupDeleteUserDialog).

(Script Example)

Note: For information about [Security] operations, refer to the following.

Security

When the [Security] operation is executed, the following dialog box will appear.

To delete a user from a user group:

1. From the [User Group] drop-down list, select the user group from which you want to delete a user.

Note: The user groups you can work with are user groups below the security level of the logged-in user. However, if the security level of the logged-in user is the highest on the system, then the user groups you can work with are users groups equal to or below the security level of the logged-in user.

Security Levels

2. From the [User Name] drop-down list, select the user to delete.
3. Touch the [Delete] button.

### Error Messages

Error Message | Cause
Failed to delete user. Security level is insufficient to delete users in the group. | The security level of the logged in user is not sufficient to delete a user from the user group. For security level information, refer to the following. Security Levels Logout is running in the background.

## Security Levels

The user groups you can work with are limited to user groups below the security level of the logged-in user.

However, if the security level of the logged-in user is the highest on the system, then the user groups you can work with are user groups equal to or below the security level of the logged-in user.

User Group | Security Level | User in the User Group | Destination User Group
JrOpeA | 0 | USER0A, user0a | None
JrOpeB | 0 | USER0B, user0b | None
SrOpeA | 1 | USER1A, user1a | JrOpeA, JrOpeB
SrOpeB | 1 | USER1B, user1b | JrOpeA, JrOpeB
AdminA | 2 | USER2A, user2a | JrOpeA, JrOpeB, SrOpeA, SrOpeB, AdminA, AdminB
AdminB | 2 | USER2B, user2b | JrOpeA, JrOpeB, SrOpeA, SrOpeB, AdminA, AdminB
RsrvA | 3 | No user | -
RsrvB | 3 | No user | -

* In the above case, there are no users registered at security level 3 (RsrvA, RsrvB), so the maximum security level of the system is 2 (AdminA, AdminB).