Hach Anatel PAT700 User Manual page 164

Modbus Protocol
Page 162
User Security Block
The User Security block comprises of parameters that are essential to Logon or change
security features in PAT700.
Note: Use FC16 where '*' is indicated.
Address Register Description
0400 User ID
0415 Password
0425 Logon / Logoff
0426 Security
0427 Data logging
0428-0499 Future Expansion
Address 400-414 (User ID) (Format: Strings)
Set the instrument's User ID to login to PAT700. The ID consists of 15 bytes of Unicode
characters.
Note: Authentication is not required to set the value for 'User ID'.
Address 415-424 (Password) (Format: Strings)
Set the instrument's Password to login to PAT700. The Password consists of 10 bytes of
Unicode characters.
Note: Authentication is not required to set the value for 'User Password'.
Address 425 (Logon / Logoff) (Format: 16 Bit Word)
Get / Set the instrument's login flag. The Logon / Logoff consist of 1 word which refers to
0 = Logoff and 1=Logon.
Note: User ID and Password should be set first before enabling the Logon flag to successfully login
to PAT700. Authentication is not required to set the value.
Address 426 (Security) (Format: 16 Bit Word)
Get / Set the instrument's Security flag. The Security consists of 1 word which refers to 0
= Disabled and 1 = Enabled.
Address 427 (Data logging) (Format: 16 Bit Word)
Get / Set the instrument's Data logging flag. The Data logging consists of 1 word which
refers to 0 = Disabled and 1 = Enabled.
Address 428-499 - Expansion
Reserved for future expansion.
User Security Block
Size
Access
(Words)
W* 15
W* 10
R/W 1
R/W 1
R/W 1