F codes (Fundamental functions)
2.3.1
F00
Data Protection
H99 (Password Protection)
■
Data protection (F00)
F00 specifies whether to protect function code data from getting changed accidentally.
When the multi-function keypad is connected, simultaneous keying of +
or
+
switches the data protection from disable to enable or vice versa, respectively.
- Data setting range: 0000
H
(Disable data protection)
0001
H
(Enable data protection)
■
Password protection (H99)
H99 specifies a password, which enables the password protection.
To change password-protected function code data, enter the specified password to F00 to disable the
password protection
temporarily
. With that state, setting H99 to 0000
permanently
disables the
password protection.
When the multi-function keypad is connected, simultaneous keying of
+
or
+
switches the password protection from disable to enable or vice versa, respectively.
- Data setting range: 0000
H
(Disable password protection)
0001
H
to FFFF
H
(Enable password protection)
Function code data (Specified state)
Changing
function code
data
Checking
function code
data
Initialization of
function code
data (H03)
H99 = 0000
F00 = 0000 (Data protection disabled)
Y
Y
Y
F00 = 0001 (Data protection enabled)
N (Y)*
1
Y
N (Y)*
1
H99
≠
0000
F00
≠
H99 (Password protection enabled)
N
N
Y*
2
F00 = H99 (Password protection
temporarily
disabled)
Y
Y
Y
*
1
Using a communications link can change or initialize function code data even if the data
protection is enabled. However, it cannot if the password protection is enabled.
*
2
Even if the password protection is enabled, using H03 can initialize all function code data
including password to the factory defaults. This is useful when the user forgot his/her password.
Neither F00 data nor H99 data can be changed via a communications link
2-24
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