Maxim Integrated OneWireViewer, Version 1.5 - Manual (Page 10)

Password
The Password viewer allows the user to set, enable, and disable passwords on a 1-Wire device, and to input the device-specific read and write passwords into the
viewer.
The tab structure of the Password viewer consists of two areas: Info (top) and Config (bottom). The Config tab has three buttons to set the software passwords, set
the device passwords, and to enable/disable the password protection on the 1-Wire device. Depending on the size of the Password tab, there may be scroll bars for
the Info area.
Password Viewer Tab
Password Viewer Commands
Set Software Passwords (to input the read and write password of the device into the software)
If the device has passwords enabled, the viewer needs to know the passwords to access the device. This command prompts the user to enter a read password in a
separate small window. Once the read password is entered, the user is asked to enter the full-access password. The viewer does not memorize the passwords
after the session with a particular device is closed. Passwords are 8-byte hexadecimal strings.
Set Device Passwords (to write a read password and a full-access password to the device)
If the user wants to activate passwords with the device, the passwords must first be written to the device and then enabled to take effect. This command prompts
the user to specify/enter a read password in a separate small window. Once the read password is entered, the user is asked to enter the full-access password. Next
the passwords are written to the respective device registers. The viewer does not memorize the passwords after the session with a particular device is closed.
Passwords entered with this command are automatically taken as software passwords; there is no need to reenter these passwords as software passwords.
Passwords need to be entered as 8-byte hexadecimal strings.
Enable/Disable Passwords on Device (to enable or disable the use of passwords with the device)
This command allows the user to activate (enable) passwords that were written to the device previously. If passwords are enabled, this command allows the user to
disable them. This command does not erase passwords in the device.
Real-Time Temperature
The Real-Time Temperature viewer gives a real-time temperature reading of the selected 1-Wire temperature device connected to the OneWireViewer. The real-
time temperature log on the screen is created from temperature data stored in the PC's memory. This is different from Thermochron and Mission viewers, where the
temperature logging is performed inside an iButton, whether or not the device is connected to the OneWireViewer.
The tab structure of the Real-Time Temperature viewer consists of three areas: Info (top), Graph (bottom left), and Thermometer (bottom right). Depending on the
size of the Real-Time Temperature tab, there may be scroll bars for the Thermometer, Graph, and Info area. The Real-Time Temperature viewer applies to devices
that contain a digital thermometer. See the Supported Devices table above for the list of devices.
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