Hitachi WJ C1 Series

Chapter 7 Keypad and Related Functions
7-2-6
7.2.4 Protecting Data with Passwords
 How to protect the parameters displayed on the keypad with a password so that they cannot be
changed without permission?
 How to protect the set parameters with a password so that they cannot be changed without
permission?
 The password function protects the settings of "Display restriction selection [b037]" and "Soft-
Lock selection [b031]". Prevents the display and setting of parameters from being changed
without permission.
 If you forget the set password, there is no way to unlock the password. Also, our factory and
distributors will not be able to investigate the password, so please be very careful when setting
the password.
Code
Item
Description
Data
[b190]
Password setting for
display restriction
selection [b037]
Password disabled
*1
0000
Set password A for "Display restriction selection
[b037]".
*2
0001 to FFFF
[b191]
Password authentication
for display restriction
selection [b037]
Parameter for authentication of password A.
0000 to FFFF
[b192]
Password setting for Soft-
Lock selection [b031]
Password disabled
*1
0000
Set password B for "Soft-Lock selection [b031]".
*2
0001 to FFFF
[b193]
Password authentication
for Soft-Lock selection
[b031]
Parameter for authentication of password B.
0000 to FFFF
*1. The password cannot be set to 0000.
*2. The characters that can be set in the password are 0 to 9 and A, b, C, d, E, F (hexadecimal).
■ Outline of the password function (example of setting password A for "Display
restriction selection [b037]")
Password not set (default)
[b190] = 0000 (input possible)
[b191] = 0000 (input impossible)
[b037] can be changed
Password lock status
[b190] = 0000 (input impossible)
[b191] = 0000 (input possible)
[b037] cannot be changed
Input 1234 to [b190]
(Set password)
Authenticated status
[b190] = 1234 (input possible)
[b191] = 0000 (input impossible)
[b037] can be changed
Password Authentication
Input 1234 to [b191]
Power cycle or no
operation for about 10
minutes or change
password
Input 0000 to [b190]
(Delete password)
Password protection is not
activated. [b037] setting can be
changed freely.
Password protection is activated.
[b037] setting cannot be
changed.
After authenticating the password, the
password settings are not deleted, but
[b037] setting can be changed. After
turning on the power again or about 10
minutes pass without any key operation,
the password lock state is automatically
activated.
A
Q
!
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