Campbell Scientific CR10X Measurement and Control System - Manual (Page 46)

SECTION 1. FUNCTIONAL MODES
1-10
TABLE 1.7-1.
∗∗∗∗C Mode Entries
SECURITY DISABLED
Keyboard Display
Entry ID: Data Description
∗ C 01:XXXX Non-zero password blocks entry to ∗1, ∗2, ∗3, ∗A, and ∗D
Modes, and P, S, and T telecommunication commands.
A 02:XXXX Non-zero password blocks
∗4, ∗5, and ∗6 except for display,
and J and U telecommunication commands.
A
03:XXXX Non-zero password blocks
∗5, ∗6, ∗7, ∗8, ∗9, ∗B, and all
telecommunications commands except A, L, N, and E.
SECURITY ENABLED
Keyboard Display
Entry ID: Data Description
∗ C
12:0000 Enter password. If correct, security is temporarily unlocked
through that level.
A 01:XX Level to which security has been disabled.
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 CR10X
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 CR10X 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 CR10X
programs, to set the degree to which memory is
cleared on powerup, to set the datalogger ID,
and to set communication to full or half duplex.
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 CR10X
Flash Memory and later recalled and run using
the
∗D Mode or Instruction 111.
PC208E, GraphTerm, and TCOM automatically
make use of the
∗D Mode to upload and download
programs from a computer. Appendix C gives
some additional information on Commands 1 and
2 that are used for these operations.
When " ∗D" is keyed in, the CR10X will display
"13:00". A command (Table 1.8-1) is entered
by keying the command number and "A".