Campbell Scientific CR23X Micrologger - Manual (Page 45)

SECTION 1. FUNCTIONAL MODES
1-11
TABLE 1.7-1.
∗ C Mode Entries
SECURITY DISABLED
Keyboard Display ID:
Entry Data Description
∗ C 01: Non-zero password blocks entry to 1 , 2 , 3 ,
XXXX A , and D Modes, telecommunication S command.
A 02: Non-zero password blocks 4 , 5 , and 6 except
for display.
XXXX
A 03: Non-zero password blocks 5 , 6 , 7 , 8 ,
XXXX 9 , B , and all telecommunications commands except
A, L, N, and E.
SECURITY ENABLED
Keyboard Display ID:
Entry Data Description
∗ C 12: Enter password. If correct, security is temporarily unlocked
0000 through that level.
A 01: Level to which security has been disabled.
XX 0 -- Password 1 entered (everything unlocked)
1 -- Password 2 entered
2 -- Password 3 entered
1.7 C MODE -- SECURITY
The C Mode is used to block access to
the user's program information and certain
CR23X functions. There are 3 levels of
security, each with its own 4 digit password.
Setting a password to a non-zero value "locks"
the functions secured at that level. The
password must subsequently be entered to
temporarily unlock security through that level.
Passwords are part of the program. If security
is enabled in the active program, it is enabled
as soon as the program is run when the CR23X
is powered up.
When security is disabled, C will advance
directly to the window containing the first
password. A non-zero password must be
entered in order to advance to the next window.
Leaving a password 0, or entering 0 for the
password disables that and subsequent levels
of security.
Security may be temporarily disabled by
entering a password in the
C Mode or
using the telecommunications L command
(Section 5.1). The password entered
determines what operations are unlocked (e.g.,
entering password 2 unlocks the functions
secured by passwords 2 and 3). Password 1
(everything unlocked) must be entered before
any passwords can be altered.
When security is temporarily disabled in the
C Mode, entering 0 will
automatically re-enable security to the level
determined by the passwords entered.
The telecommunications L command
temporarily changes the security level. After
hanging up, security is reset.
1.8 D MODE -- SAVE OR LOAD
PROGRAM
The D Mode is used to save or load
CR23X programs, to set the degree to which
memory is cleared on powerup, to set the
datalogger ID, to set communication to full or
half duplex, and to set the display’s contrast
level.
Programs ( 1 , 2 , 3 , 4 ,
A , C , and D Mode data) may
be stored to and from computers, internal flash
memory, and Storage Modules. Several
programs can be stored in the CR23X Flash
Memory and later recalled and run using the
D Mode or Instruction 111.