Rockwell Automation 1785-Lx6B,D17856.5.13 MNL. PLC-5 PROTECTED PROCESSOR - Manual (Page 23)

Chapter 3
Configuring DTE Protection
3-2
Entering the file number of the DTEP file into element 63 of the status file
(S:63) automatically initiates the DTEP mechanism for end users.
As system administrator, use the steps at the left and enter a ladder
instruction moving the desired DTEP file number into S:63 of the status file.
This ladder instruction can be temporary as long as it executes once to set the
value in the status file. After that, you can remove the ladder instruction and
the program can be archived (saved) with protection in place.
Important: The validity of the file number moved into address S:63 is not
checked until a screened command is received from an end user during
online programming. If it is not valid:
• an error code is returned
• a minor fault (S:17/12) is set
You, as system administrator, must follow the steps on page 3-8 to force
validation of this file number before turning the system over to end users.
The protection mechanism remains in effect for the end user until you either:
• give the Modify Privileges privilege to the end user
• clear the DTEP file entry from the status file
When DTEP is in effect, the following are automatically protected from
modification by commands issued by an end user:
• element 63 of the status file
• the entire DTEP file
Important: For the system administrator, possession of the privilege to
modify privileges overrides the protection mechanism.
Monitor File
F8
F4
Insert
Rung
Cursor to Progam File
Edit
F10
F4
Insert
Instruction
6200
Main Menu
Online
Program
F1
MOV
Move
Source
Dest
10
S:63
S:1
10
Rung conditioned
off first scan bit. Moves a value of 10 into S:63,
which configures the protection
file to be file number 10.
Initiating the Protection
Mechanism